{"title":"Material Type","description":"","products":[{"product_id":"50mm-rockwool-flexi-600mm","title":"50mm Rockwool Flexi Insulation Slab  1.2m x 600mm","description":"\u003cp class=\"MsoNormal\"\u003eThe Rockwool Flexi Slab (600mm) is a versatile, high-performance stone wool insulation designed to provide exceptional acoustic, thermal, and fire protection across a wide range of applications. Featuring a unique flexible edge for a snug friction-fit, it’s perfect for pitched roofs, partition walls, intermediate floors, and framed constructions in both residential and commercial buildings. Combining durability, ease of installation, and sustainable materials, it’s a trusted choice for long-lasting insulation performance.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eEffectively absorbs sound to reduce noise transmission between rooms, floors, and walls\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLow thermal conductivity of 0.038 W\/m·K (50–120 mm) and 0.035 W\/m·K (140 mm +), helping to improve energy efficiency and indoor comfort\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRated Euroclass A1 non-combustible, offering the highest level of fire safety\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUnique flexible edge ensures a tight friction-fit and compensates for minor framework movement or timber shrinkage, reducing gaps and heat loss\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eWater repellent and rot resistant, preventing moisture build-up, damp, and decay for long-lasting performance\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHighly durable, maintaining its structure and insulation performance throughout the building’s lifetime\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSemi-rigid, lightweight slabs that are easy to handle, cut, and install\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade from natural volcanic rock and recycled materials, contributing to an environmentally responsible build\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for residential, commercial, and industrial projects, including schools, hospitals, and offices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eGood to Know\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for use in pitched roofs, partition walls, intermediate floors, separating floors, and framed constructions\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eFlexible edge allows a tight friction-fit between timber or metal studs, ensuring consistent performance even if the framework moves or settles\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUse a utility or serrated knife to cut the slabs cleanly; wear gloves and goggles to avoid irritation\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePlease store under cover and clear of the ground. Avoid prolonged exposure to the elements, especially direct sunlight and rain\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSpecialist PPE is not required, although if you are cutting the insulation in an unventilated area, it is recommended to use a suitable dust mask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653176717646,"sku":"BM003226","price":56.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"100mm-rockwool-flexi-600mm","title":"100mm Rockwool Flexi Insulation Slab  1.2m x 600mm - 4.32 m²","description":"\u003cp class=\"MsoNormal\"\u003eThe Rockwool Flexi Slab (600mm) is a versatile, high-performance stone wool insulation designed to provide exceptional acoustic, thermal, and fire protection across a wide range of applications. Featuring a unique flexible edge for a snug friction-fit, it’s perfect for pitched roofs, partition walls, intermediate floors, and framed constructions in both residential and commercial buildings. Combining durability, ease of installation, and sustainable materials, it’s a trusted choice for long-lasting insulation performance.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eEffectively absorbs sound to reduce noise transmission between rooms, floors, and walls\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLow thermal conductivity of 0.038 W\/m·K (50–120 mm) and 0.035 W\/m·K (140 mm +), helping to improve energy efficiency and indoor comfort\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRated Euroclass A1 non-combustible, offering the highest level of fire safety\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUnique flexible edge ensures a tight friction-fit and compensates for minor framework movement or timber shrinkage, reducing gaps and heat loss\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eWater repellent and rot resistant, preventing moisture build-up, damp, and decay for long-lasting performance\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHighly durable, maintaining its structure and insulation performance throughout the building’s lifetime\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSemi-rigid, lightweight slabs that are easy to handle, cut, and install\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade from natural volcanic rock and recycled materials, contributing to an environmentally responsible build\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for residential, commercial, and industrial projects, including schools, hospitals, and offices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eGood to Know\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for use in pitched roofs, partition walls, intermediate floors, separating floors, and framed constructions\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eFlexible edge allows a tight friction-fit between timber or metal studs, ensuring consistent performance even if the framework moves or settles\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUse a utility or serrated knife to cut the slabs cleanly; wear gloves and goggles to avoid irritation\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePlease store under cover and clear of the ground. Avoid prolonged exposure to the elements, especially direct sunlight and rain\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSpecialist PPE is not required, although if you are cutting the insulation in an unventilated area, it is recommended to use a suitable dust mask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653178716494,"sku":"BM004630","price":55.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"120mm-rockwool-flexi-600mm","title":"120mm Rockwool Flexi Insulation Slab  1.2m x 600mm","description":"\u003cp class=\"MsoNormal\"\u003eThe Rockwool Flexi Slab (600mm) is a versatile, high-performance stone wool insulation designed to provide exceptional acoustic, thermal, and fire protection across a wide range of applications. Featuring a unique flexible edge for a snug friction-fit, it’s perfect for pitched roofs, partition walls, intermediate floors, and framed constructions in both residential and commercial buildings. Combining durability, ease of installation, and sustainable materials, it’s a trusted choice for long-lasting insulation performance.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eEffectively absorbs sound to reduce noise transmission between rooms, floors, and walls\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLow thermal conductivity of 0.038 W\/m·K (50–120 mm) and 0.035 W\/m·K (140 mm +), helping to improve energy efficiency and indoor comfort\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRated Euroclass A1 non-combustible, offering the highest level of fire safety\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUnique flexible edge ensures a tight friction-fit and compensates for minor framework movement or timber shrinkage, reducing gaps and heat loss\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eWater repellent and rot resistant, preventing moisture build-up, damp, and decay for long-lasting performance\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHighly durable, maintaining its structure and insulation performance throughout the building’s lifetime\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSemi-rigid, lightweight slabs that are easy to handle, cut, and install\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade from natural volcanic rock and recycled materials, contributing to an environmentally responsible build\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for residential, commercial, and industrial projects, including schools, hospitals, and offices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eGood to Know\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for use in pitched roofs, partition walls, intermediate floors, separating floors, and framed constructions\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eFlexible edge allows a tight friction-fit between timber or metal studs, ensuring consistent performance even if the framework moves or settles\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUse a utility or serrated knife to cut the slabs cleanly; wear gloves and goggles to avoid irritation\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePlease store under cover and clear of the ground. Avoid prolonged exposure to the elements, especially direct sunlight and rain\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSpecialist PPE is not required, although if you are cutting the insulation in an unventilated area, it is recommended to use a suitable dust mask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653179208014,"sku":"BM005312","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"140mm-rockwool-flexi-600mm","title":"140mm Rockwool Flexi Insulation Slab  1.2m x 600mm","description":"\u003cp class=\"MsoNormal\"\u003eThe Rockwool Flexi Slab (600mm) is a versatile, high-performance stone wool insulation designed to provide exceptional acoustic, thermal, and fire protection across a wide range of applications. Featuring a unique flexible edge for a snug friction-fit, it’s perfect for pitched roofs, partition walls, intermediate floors, and framed constructions in both residential and commercial buildings. Combining durability, ease of installation, and sustainable materials, it’s a trusted choice for long-lasting insulation performance.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eEffectively absorbs sound to reduce noise transmission between rooms, floors, and walls\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLow thermal conductivity of 0.038 W\/m·K (50–120 mm) and 0.035 W\/m·K (140 mm +), helping to improve energy efficiency and indoor comfort\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRated Euroclass A1 non-combustible, offering the highest level of fire safety\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUnique flexible edge ensures a tight friction-fit and compensates for minor framework movement or timber shrinkage, reducing gaps and heat loss\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eWater repellent and rot resistant, preventing moisture build-up, damp, and decay for long-lasting performance\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHighly durable, maintaining its structure and insulation performance throughout the building’s lifetime\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSemi-rigid, lightweight slabs that are easy to handle, cut, and install\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade from natural volcanic rock and recycled materials, contributing to an environmentally responsible build\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for residential, commercial, and industrial projects, including schools, hospitals, and offices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eGood to Know\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for use in pitched roofs, partition walls, intermediate floors, separating floors, and framed constructions\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eFlexible edge allows a tight friction-fit between timber or metal studs, ensuring consistent performance even if the framework moves or settles\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUse a utility or serrated knife to cut the slabs cleanly; wear gloves and goggles to avoid irritation\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePlease store under cover and clear of the ground. Avoid prolonged exposure to the elements, especially direct sunlight and rain\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSpecialist PPE is not required, although if you are cutting the insulation in an unventilated area, it is recommended to use a suitable dust mask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653179961678,"sku":"BM003571","price":55.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"50mm-rockwool-flexi-400mm","title":"50mm Rockwool Flexi Insulation Slab  1.2m x 400mm","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eROCKWOOL Flexi is a stone wool insulation slab used across a wide range of domestic and commercial construction projects. It goes between studs in partitions and external walls, between joists in floors, and between rafters in roofs — and it stays put without slumping, cutting or fixing. The slab is made from natural volcanic rock spun into stone wool fibres, and it is manufactured with a flexible edge along one side that compresses on installation and then expands to grip the frame tightly from within.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis is the 50mm slab in the 400mm width — the most commonly used thickness for internal stud partitions and acoustic applications where frame depth is limited. The flexible Flexi Edge does the work of holding the slab in place, so there is no need to cut it to width or force it into the frame. It friction fits, stays put, and will not slump even if the timber studs shrink over time.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe slab achieves a thermal conductivity (lambda) of 0.038 W\/mK and a Euroclass A1 reaction-to-fire classification, meaning it is fully non-combustible. At 50mm, it meets the minimum insulation depth required for a number of Approved Document E partition systems, including both the timber frame and metal frame lightweight domestic partition solutions that achieve Rw 42dB.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for stud partitions, wall linings, separating walls, floors and roofs\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFlexible Flexi Edge for a tight friction fit — no cutting to width required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWill not slump, even if timber studs shrink after installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass A1 non-combustible — the highest possible reaction-to-fire classification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStone wool is vapour permeable, reducing the risk of condensation and mould\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMeets minimum depth for Approved Document E acoustic partition systems at Rw 42dB\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEndlessly recyclable — off-cuts can be returned via ROCKWOOL's Rockcycle service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSize: 1200 x 400 x 50mm; weight: refer to ROCKWOOL datasheet for pack details\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity: 0.038 W\/mK to BS EN 13162:2012 + A1:2015\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire: Euroclass A1 to EN 13501-1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupport with polypropylene netting or breather membrane in floor applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eInstall in accordance with current ROCKWOOL guidelines — visit rockwool.com\/uk\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlways refer to the ROCKWOOL Flexi technical datasheet before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653181632846,"sku":"BM02205","price":37.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"100mm-rockwool-flexi-400mm","title":"100mm Rockwool Flexi Insulation Slab 1.2m x 400mm - 2.88m²","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eROCKWOOL Flexi is a stone wool insulation slab used across a wide range of domestic and commercial construction projects. It goes between studs in partitions and external walls, between joists in floors, and between rafters in roofs — and it stays put without slumping, cutting or fixing. The slab is made from natural volcanic rock spun into stone wool fibres, and it is manufactured with a flexible edge along one side that compresses on installation and then expands to grip the frame tightly from within.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis is the 100mm slab in the 400mm width — one of the most versatile thicknesses in the Flexi range. It is the depth called for in suspended timber ground floor applications, one-hour fire upgrade floor constructions, Approved Document E separating floor systems and Approved Document E internal domestic floor systems. The same slab covers all of those applications, which makes it a practical product to have on site when multiple build-ups are involved.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe slab achieves a thermal conductivity (lambda) of 0.038 W\/mK and a Euroclass A1 reaction-to-fire classification — fully non-combustible. It has been tested to BS 476: Part 21 and confirmed to achieve one-hour fire resistance in existing timber floor constructions when installed correctly. In separating floor builds using ROCKWOOL RockFloor resilient layer, 100mm Flexi contributes to achieving Rw 54dB airborne and Lnw 54dB impact performance to Part E Section 3. For internal domestic floors to Part E Section 5, it achieves Rw 40dB.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for suspended floors, separating floors, internal floors, walls and fire upgrade applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFlexible Flexi Edge for a tight friction fit — no cutting to width required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWill not slump, even if timber studs or joists shrink after installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTested to BS 476: Part 21 — achieves one-hour fire resistance in timber floor upgrades\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMeets Approved Document E acoustic requirements for separating and internal timber floors\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass A1 non-combustible — the highest possible reaction-to-fire classification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStone wool is vapour permeable, reducing the risk of condensation and mould\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSize: 1200 x 400 x 100mm; weight: refer to ROCKWOOL datasheet for pack details\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity: 0.038 W\/mK to BS EN 13162:2012 + A1:2015\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire: Euroclass A1 to EN 13501-1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupport in floor applications with polypropylene netting or breather membrane, fitted close to underside of floor deck\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eInstall in accordance with current ROCKWOOL guidelines — visit rockwool.com\/uk\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlways refer to the ROCKWOOL Flexi technical datasheet before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653184516430,"sku":"BM02203","price":37.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"140mm-rockwool-flexi-400mm","title":"140mm Rockwool Flexi Insulation Slab  1.2m x 400mm - 1.92m2","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eROCKWOOL Flexi is a stone wool insulation slab used across a wide range of domestic and commercial construction projects. It goes between studs in partitions and external walls, between joists in floors, and between rafters in roofs — and it stays put without slumping, cutting or fixing. The slab is made from natural volcanic rock spun into stone wool fibres, and it is manufactured with a flexible edge along one side that compresses on installation and then expands to grip the frame tightly from within.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis is the 140mm slab in the 400mm width — the primary specification choice for timber frame external walls, and the point in the Flexi range where the lambda value improves from 0.038 W\/mK to 0.035 W\/mK. That improvement matters in practice: at 140mm with a 140mm stud and a standard breather membrane, the build-up achieves a U-value of 0.28 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe slab is non-combustible to Euroclass A1 and is suitable for cold frame, warm frame and hybrid frame constructions. It is also used in suspended floor applications, where 140mm Flexi achieves a U-value of 0.22 W\/m²K across all standard P\/A ratios.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePrimary specification for timber frame external wall insulation to meet Part L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eImproved lambda of 0.035 W\/mK at 140mm and above — better thermal performance per millimetre\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eU-values from 0.28 down to 0.20 W\/m²K achievable depending on membrane and stud selection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFlexible Flexi Edge for a tight friction fit — no cutting to width required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWill not slump, even if timber studs shrink after installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass A1 non-combustible — the highest possible reaction-to-fire classification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlso suitable for suspended floor applications — achieves 0.22 W\/m²K at all standard P\/A ratios\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStone wool is vapour permeable, reducing the risk of condensation and mould\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSize: 1200 x 400 x 140mm; weight: refer to ROCKWOOL datasheet for pack details\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity: 0.035 W\/mK at 140mm and above, to BS EN 13162:2012 + A1:2015\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire: Euroclass A1 to EN 13501-1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eU-values range from 0.28 to 0.20 W\/m²K depending on stud depth, breather membrane and VCL specification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eInstall in accordance with current ROCKWOOL guidelines — visit rockwool.com\/uk\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlways refer to the ROCKWOOL Flexi technical datasheet before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653184844110,"sku":"BM02202","price":34.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-flexi-insulation-slab-50mm-1-2m-x-600mm-bm003226-mineral-fibre-insulation-1246757332.png?v=1782926655"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-375mm-21-per-pack","title":"37.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 21 Per Pallet","description":"\u003cp dir=\"ltr\"\u003e37.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a factory-bonded internal wall insulation board built around a fibre-free rigid phenolic insulation core, laminated to a 12.5mm tapered-edge gypsum plasterboard on the room-facing side. It's used for internal wall insulation upgrades on solid or cavity masonry walls, and in new build dry lining, giving a single board that combines insulation, drylining and vapour control in one fix. At 37.5mm overall (a 25mm phenolic core behind the plasterboard), it's the thinnest board in the K118 range, suited to projects where wall build-up depth is tightly constrained.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm, giving 2.88m² of coverage per board, and weighs approximately 11.75kg\/m². K118's declared thermal conductivity is 0.019 W\/mK across every thickness in the range, one of the lowest lambda values available in a common insulation material, which is what allows a 25mm phenolic core to do the thermal work of a considerably thicker standard insulation board. Based on that core thickness, the calculated thermal resistance works out at approximately 1.30 m²K\/W. A U-value for the finished wall depends on the whole build-up, not the board figure alone, so it should always be calculated against the actual wall construction.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides allows joints to be filled and skim-finished in the same way as standard plasterboard, so there's no visible joint line once decorated. On the reverse face, a low-emissivity composite foil acts as the board's integral vapour control layer, meaning a separate VCL isn't needed provided joints, penetrations and perimeters are sealed correctly during installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e37.5mm K118 is installed as a retrofit upgrade to existing solid or cavity masonry walls, or specified into new build dry lining, and should be fitted in line with Kingspan's current technical guidance and the project specification. Careful detailing at board joints, penetrations and perimeters matters more with this board than with a standalone insulation product, since the integral foil only performs as a vapour control layer where those details are sealed properly. Where the alternative is a thicker board eating into room space, the slim profile of 37.5mm K118 is often the practical starting point.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 37.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in a single board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eThinnest board in the K118 range at 37.5mm overall (25mm phenolic core), suited to space-constrained internal wall insulation projects\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eCalculated thermal resistance of approximately 1.30 m²K\/W from the 25mm phenolic core\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically greater than 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK at Kingspan's Pembridge facility, Herefordshire\u003c\/li\u003e\n\u003cli\u003eSuitable for solid and cavity masonry wall upgrades and new build dry lining when installed to Kingspan's guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eEach board measures 2400mm x 1200mm and is sold individually, covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: the gypsum plasterboard face goes into the room, the composite foil face goes against the wall\u003c\/li\u003e\n\u003cli\u003eThe foil facing only functions as a vapour control layer where joints, penetrations and perimeters are sealed correctly, so check Kingspan's current fixing guidance before starting\u003c\/li\u003e\n\u003cli\u003eBecause the plasterboard facing is already fixed to the board, there's no separate lining step: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eStore boards flat, in a dry environment, off the ground and away from excess weight; if stored outside, keep them under a weatherproof cover\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eFor internal wall insulation projects where thickness is the limiting factor, 37.5mm Kingspan Kooltherm K118 gives you the same phenolic performance as the rest of the range in its slimmest available profile, with drylining and vapour control built in as standard.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653320241486,"sku":"IUK00917","price":1500.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-37-5mm-21-per-pack-iuk00917-drywall-1172612648.png?v=1749677878"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-425mm-18-per-pack","title":"42.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 18 Per Pallet","description":"\u003cp dir=\"ltr\"\u003e42.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a factory-bonded internal wall insulation board built around a fibre-free rigid phenolic insulation core, laminated to a 12.5mm tapered-edge gypsum plasterboard on the room-facing side. It's the second-thinnest board in the K118 range: a 30mm phenolic core behind the plasterboard, 5mm more than the entry-level 37.5mm board, for a useful step up in thermal performance while keeping the overall build-up slim.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm, giving 2.88m² of coverage per board, and weighs approximately 11.93kg\/m². K118's declared thermal conductivity is 0.019 W\/mK across every thickness in the range. From the 30mm phenolic core, the calculated thermal resistance works out at approximately 1.55 m²K\/W, a meaningful step up on the 37.5mm board's 1.30 m²K\/W for only 5mm of additional depth. As with any insulated wall build-up, the finished U-value depends on the full wall construction rather than the board figure alone, so it should be calculated against the actual wall.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides allows joints to be filled and skim-finished in the same way as standard plasterboard, so there's no visible joint line once decorated. On the reverse face, a low-emissivity composite foil acts as the board's integral vapour control layer, meaning a separate VCL isn't needed provided joints, penetrations and perimeters are sealed correctly during installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e42.5mm K118 is fitted to solid and cavity masonry walls as a retrofit internal wall insulation upgrade, and specified into new build dry lining. It also suits timber frame wall construction, and can be fixed via timber battens or metal furring systems where it's used as a ceiling lining, on both horizontal and sloping ceilings. Install it in line with Kingspan's current technical guidance and the project specification, with particular care at board joints, penetrations and perimeters, since the integral foil only performs as a vapour control layer where those details are sealed correctly.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 42.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in a single board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eSecond-thinnest board in the K118 range at 42.5mm overall (30mm phenolic core), a step up in performance from the 37.5mm board for only 5mm extra depth\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eCalculated thermal resistance of approximately 1.55 m²K\/W from the 30mm phenolic core\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK at Kingspan's Pembridge facility, Herefordshire\u003c\/li\u003e\n\u003cli\u003eSuitable for solid and cavity masonry walls, timber frame walls, and ceiling linings (fixed via battens or metal furring) when installed to Kingspan's guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eEach board measures 2400mm x 1200mm and is sold individually, covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: the gypsum plasterboard face goes into the room (or beneath it, on ceilings), the composite foil face goes against the substrate\u003c\/li\u003e\n\u003cli\u003eThe foil facing only functions as a vapour control layer where joints, penetrations and perimeters are sealed correctly, so check Kingspan's current fixing guidance before starting\u003c\/li\u003e\n\u003cli\u003eBecause the plasterboard facing is already fixed to the board, there's no separate lining step: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eOn ceilings, boards can be fixed via timber battens or a metal furring system rather than direct to the substrate\u003c\/li\u003e\n\u003cli\u003eStore boards flat, in a dry environment, off the ground and away from excess weight; if stored outside, keep them under a weatherproof cover\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eWhere the entry-level 37.5mm board doesn't quite deliver the thermal performance a project needs, 42.5mm Kingspan Kooltherm K118 offers a straightforward step up, with the same drylining, vapour control and phenolic performance built into the same slim insulated plasterboard format.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653321552206,"sku":"IUK01215","price":1326.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-42-5mm-18-per-pack-iuk01215-drywall-1172612645.png?v=1749677771"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-525mm-15-per-pack","title":"52.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 15 Per Pallet","description":"\u003cp dir=\"ltr\"\u003e52.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a factory-bonded internal wall insulation board built around a fibre-free rigid phenolic insulation core, laminated to a 12.5mm tapered-edge gypsum plasterboard on the room-facing side. Sitting roughly in the middle of the K118 range, it pairs a 40mm phenolic core with the plasterboard facing for a step up in thermal performance from the two thinner boards, while still keeping the overall build-up considerably slimmer than fitting insulation and plasterboard separately.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm, giving 2.88m² of coverage per board, and weighs approximately 12.28kg\/m². K118's declared thermal conductivity is 0.019 W\/mK across every thickness in the range. The 40mm phenolic core gives 52.5mm K118 a thermal resistance of 2.10 m²K\/W, confirmed directly against Kingspan's current datasheet rather than calculated from the core thickness, a step up from the 1.55 m²K\/W of the 42.5mm board. As with any insulated wall build-up, the finished U-value depends on the full wall construction rather than the board figure alone, so it should be calculated against the actual wall.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides allows joints to be filled and skim-finished in the same way as standard plasterboard, so there's no visible joint line once decorated. On the reverse face, a low-emissivity composite foil acts as the board's integral vapour control layer, meaning a separate VCL isn't needed provided joints, penetrations and perimeters are sealed correctly during installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFit 52.5mm K118 to solid or cavity masonry as a retrofit internal wall insulation upgrade, or specify it into new build dry lining from the outset. The board also works on timber frame walls, and via timber battens or a metal furring system it can be used to line ceilings, both horizontal and sloping. Whichever substrate it's going onto, follow Kingspan's current technical guidance and the project specification, and pay particular attention to joints, penetrations and perimeters: that's where the integral foil vapour control layer earns its keep, or fails to, depending on how well it's sealed.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 52.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in a single board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eMid-range board in the K118 line-up at 52.5mm overall (40mm phenolic core), a meaningful thermal step up from the 42.5mm board\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eThermal resistance of 2.10 m²K\/W, confirmed directly against Kingspan's current datasheet\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK at Kingspan's Pembridge facility, Herefordshire\u003c\/li\u003e\n\u003cli\u003eSuitable for solid and cavity masonry walls, timber frame walls, and ceiling linings (fixed via battens or metal furring) when installed to Kingspan's guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBoards measure 2400mm x 1200mm and are sold individually, each covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: plasterboard faces into the room (or down, on ceilings), composite foil faces the substrate\u003c\/li\u003e\n\u003cli\u003eThe foil only performs as a vapour control layer where joints, penetrations and perimeters are sealed correctly: check Kingspan's current fixing guidance before starting\u003c\/li\u003e\n\u003cli\u003eNo separate lining step is needed since the plasterboard facing is already fixed to the board: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eOn ceilings, fix via timber battens or a metal furring system rather than direct to the substrate\u003c\/li\u003e\n\u003cli\u003eStore flat, in a dry environment, off the ground and away from excess weight; cover with a weatherproof sheet if stored outside\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eAs the range's natural mid-point, 52.5mm Kingspan Kooltherm K118 delivers a proper step up in thermal performance over the thinner boards, while still combining insulation, drylining and vapour control into one factory-made board.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653323682126,"sku":"IUK00918","price":1171.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-52-5mm-15-per-pack-iuk00918-drywall-1172612644.png?v=1749677767"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-575mm-14-per-pack","title":"57.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 14 Per Pallet","description":"\u003cp dir=\"ltr\"\u003eNot every project needs a big jump in thickness to hit its target U-value: 57.5mm Kingspan Kooltherm K118 Insulated Plasterboard exists for the projects that need a smaller one. Built around a 45mm fibre-free rigid phenolic core, factory-bonded to a 12.5mm tapered-edge gypsum plasterboard, it sits just past the middle of the K118 range and gives a modest but genuine thermal improvement over the 52.5mm board without moving into noticeably thicker territory.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm for 2.88m² of coverage, and weighs approximately 12.45kg\/m². The declared thermal conductivity holds at 0.019 W\/mK, as it does across every K118 thickness. From the 45mm core, the calculated thermal resistance works out at approximately 2.35 m²K\/W, a step up from the 52.5mm board's 2.10 m²K\/W. As always, the finished wall's U-value depends on the complete build-up rather than the board alone, so it needs calculating against the actual construction rather than read off a single figure.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides means joints fill and skim exactly like standard plasterboard, so there's no visible seam once decorated, and the composite foil on the reverse face works as the board's integral vapour control layer where joints and penetrations are properly sealed. The core is manufactured with a blowing agent of zero Ozone Depletion Potential and low Global Warming Potential, and resists mould and microbial growth without providing any food value to vermin, useful properties in the kind of solid wall retrofit where damp has historically been a concern.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eLike the rest of the range, 57.5mm K118 goes onto solid and cavity masonry walls as an internal wall insulation retrofit, or into new build dry lining from the start. It's also specified on timber frame walls, and via timber battens or a metal furring system it lines ceilings and roofs, both horizontal and sloping. Whatever the substrate, follow Kingspan's current technical guidance and the project specification, and take particular care sealing joints, penetrations and perimeters, since that's what determines whether the integral foil actually performs as a vapour control layer.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 57.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in one board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eSits just past the mid-point of the K118 range at 57.5mm overall (45mm phenolic core), for a smaller thermal step than jumping straight to 62.5mm\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eCalculated thermal resistance of approximately 2.35 m²K\/W from the 45mm phenolic core\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer\u003c\/li\u003e\n\u003cli\u003eManufactured with a blowing agent of zero ODP and low GWP, and resists mould and microbial growth\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eSuitable for solid and cavity masonry walls, timber frame walls, and ceiling\/roof linings (fixed via battens or metal furring) when installed to Kingspan's guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBoards measure 2400mm x 1200mm and are sold individually, each covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: plasterboard faces into the room (or down, on ceilings), composite foil faces the substrate\u003c\/li\u003e\n\u003cli\u003eThe foil only performs as a vapour control layer where joints, penetrations and perimeters are sealed correctly: check Kingspan's current fixing guidance before starting\u003c\/li\u003e\n\u003cli\u003eNo separate lining step is needed since the plasterboard facing is already fixed to the board: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eOn ceilings or roofs, fix via timber battens or a metal furring system rather than direct to the substrate\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK at Kingspan's Pembridge facility, Herefordshire\u003c\/li\u003e\n\u003cli\u003eStore flat, in a dry environment, off the ground and away from excess weight; cover with a weatherproof sheet if stored outside\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eWhen 52.5mm doesn't quite reach the number a project needs, 57.5mm Kingspan Kooltherm K118 offers the smaller step, keeping the same phenolic performance, drylining and vapour control in a single board without overshooting the wall build-up.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653325222222,"sku":"IUK01216","price":1169.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-57-5mm-14-per-pack-iuk01216-drywall-1172612639.png?v=1749677414"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-625mm-12-per-pack","title":"62.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 12 Per Pallet","description":"\u003cp dir=\"ltr\"\u003eThe K118 range steps up in 5mm increments from 37.5mm through to 62.5mm, then widens to 10mm jumps for the two thickest boards. 62.5mm Kingspan Kooltherm K118 Insulated Plasterboard is the last board in that tighter run, built around a 50mm fibre-free rigid phenolic core factory-bonded to a 12.5mm tapered-edge gypsum plasterboard, and it's the board to reach for when a project needs a specific, closely dialled-in level of thermal performance rather than a round-number jump.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm for 2.88m² of coverage, and weighs approximately 12.63kg\/m². Thermal conductivity holds at the same declared 0.019 W\/mK as every other K118 thickness. The 50mm phenolic core gives a calculated thermal resistance of approximately 2.60 m²K\/W, a step up from the 57.5mm board's 2.35 m²K\/W. As always, the finished wall's U-value is a function of the complete build-up rather than the insulation board figure alone, so it needs calculating against the actual construction.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides allows joints to be filled and skim-finished exactly like standard plasterboard, so there's no visible seam once decorated, and the composite foil on the reverse face acts as the board's integral vapour control layer provided joints, penetrations and perimeters are sealed correctly. The core is manufactured with a blowing agent of zero Ozone Depletion Potential and low Global Warming Potential, and resists mould and microbial growth.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e62.5mm K118 goes onto solid and cavity masonry walls for a retrofit internal wall insulation upgrade, or into new build dry lining from the outset. It's also suited to timber frame walls, and via timber battens or a metal furring system it can line ceilings and roofs, both horizontal and sloping. Install it in line with Kingspan's current technical guidance and the project specification, paying particular attention to joints, penetrations and perimeters, since that's what determines whether the integral foil functions as a proper vapour control layer.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 62.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in one board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eLast board in the K118 range's tighter 5mm increments, before thicknesses widen to 10mm steps at 72.5mm and 82.5mm\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eCalculated thermal resistance of approximately 2.60 m²K\/W from the 50mm phenolic core\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer\u003c\/li\u003e\n\u003cli\u003eManufactured with a blowing agent of zero ODP and low GWP, and resists mould and microbial growth\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eSuitable for solid and cavity masonry walls, timber frame walls, and ceiling\/roof linings (fixed via battens or metal furring) when installed to Kingspan's guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBoards measure 2400mm x 1200mm and are sold individually, each covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: plasterboard faces into the room (or down, on ceilings), composite foil faces the substrate\u003c\/li\u003e\n\u003cli\u003eThe foil only performs as a vapour control layer where joints, penetrations and perimeters are sealed correctly: check Kingspan's current fixing guidance before starting\u003c\/li\u003e\n\u003cli\u003eNo separate lining step is needed since the plasterboard facing is already fixed to the board: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eOn ceilings or roofs, fix via timber battens or a metal furring system rather than direct to the substrate\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK at Kingspan's Pembridge facility, Herefordshire\u003c\/li\u003e\n\u003cli\u003eStore flat, in a dry environment, off the ground and away from excess weight; cover with a weatherproof sheet if stored outside\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eAs the last of the range's 5mm increments, 62.5mm Kingspan Kooltherm K118 gives projects a precise final step of thermal performance before the range moves to bigger jumps, without giving up the drylining and vapour control built into every K118 board.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653325746510,"sku":"IUK00919","price":1069.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-62-5mm-12-per-pack-iuk00919-drywall-1172612638.png?v=1749677410"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-725mm-11-per-pack","title":"72.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 11 Per Pallet","description":"\u003cp dir=\"ltr\"\u003eAfter 62.5mm, the K118 range widens its increments from 5mm to 10mm steps, and 72.5mm Kingspan Kooltherm K118 Insulated Plasterboard is the first board in that wider run. Built around a 60mm fibre-free rigid phenolic core, factory-bonded to a 12.5mm tapered-edge gypsum plasterboard, it delivers a genuinely bigger single jump in thermal performance than any of the closer-spaced thinner boards manage on their own.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm for 2.88m² of coverage, and weighs approximately 12.98kg\/m². The declared thermal conductivity is 0.019 W\/mK, consistent across the whole K118 range. From the 60mm core, 72.5mm K118 achieves a thermal resistance of 3.15 m²K\/W, one of only two thicknesses in the range where the R-value is confirmed directly against Kingspan's current published datasheet rather than calculated from the core thickness (52.5mm is the other). As always, the completed wall's U-value depends on the full build-up, not the board figure alone, so it needs calculating against the actual construction.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides means joints fill and skim exactly like standard plasterboard, leaving no visible seam once decorated. On the reverse face, a low-emissivity composite foil acts as the board's integral vapour control layer: K118 is a moisture closed system, keeping damp out via the VCL and the wall's external leaf rather than relying on the wall breathing. The core is manufactured with a blowing agent of zero Ozone Depletion Potential and low Global Warming Potential, and resists mould and microbial growth.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eKingspan's own guidance confirms K118 for use on solid stonework and brickwork, with or without an existing lining, as well as masonry cavity walls and timber frame construction. It's also used as insulated drylining fixed at rafter level to form a sloping ceiling in loft conversions and pitched roof build-ups, typically working alongside a primary rafter insulation board such as Kooltherm K107. Fixed to timber battens, Kingspan specifies battens at 600mm vertical centres with a damp-proof-course strip between batten and wall, boards fixed with drywall screws at 300mm centres or galvanised clout nails at 150mm centres, and noggins positioned horizontally at floor and ceiling level at a maximum of 1200mm vertical centres. Install in line with the latest Kingspan technical guidance and the project specification, with particular care at joints, penetrations and perimeters so the integral vapour control layer performs as intended.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 72.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in one board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eFirst board in the range's wider 10mm increments, after the tighter 5mm steps end at 62.5mm\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eThermal resistance of 3.15 m²K\/W, confirmed directly against Kingspan's current datasheet (one of only two thicknesses in the range with a confirmed rather than calculated figure)\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer, as part of a moisture closed system\u003c\/li\u003e\n\u003cli\u003eManufactured with a blowing agent of zero ODP and low GWP, and resists mould and microbial growth\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eConfirmed by Kingspan for solid stonework and brickwork (with or without existing lining), masonry cavity walls, timber frame walls, and rafter-level drylining in pitched roof\/loft conversions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBoards measure 2400mm x 1200mm and are sold individually, each covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: plasterboard faces into the room, composite foil faces the substrate\u003c\/li\u003e\n\u003cli\u003eAs a moisture closed system, the vapour control layer needs to stay continuous (joints, penetrations and perimeters properly sealed) for the wall build-up to manage condensation correctly\u003c\/li\u003e\n\u003cli\u003eKingspan's fixing guidance for timber battens: 600mm vertical centres, a DPC strip between batten and wall, drywall screws at 300mm centres or clout nails at 150mm centres, with noggins at floor and ceiling level at up to 1200mm vertical centres\u003c\/li\u003e\n\u003cli\u003eNo separate lining step is needed since the plasterboard facing is already fixed to the board: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eStore flat, in a dry environment, off the ground and away from excess weight; cover with a weatherproof sheet if stored outside\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eAs the first board past the range's widened increments, 72.5mm Kingspan Kooltherm K118 delivers a confirmed, meaningful step up in thermal performance for internal wall projects, without losing the drylining and vapour control built into every K118 board.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653326991694,"sku":"IUK00920","price":1029.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-72-5mm-11-per-pack-iuk00920-drywall-1172612634.png?v=1749677535"},{"product_id":"kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-825mm-9-per-pack","title":"82.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2.4m x 1.2m 9 Per Pallet","description":"\u003cp dir=\"ltr\"\u003e82.5mm Kingspan Kooltherm K118 Insulated Plasterboard is the thickest board in the range, built around a 70mm fibre-free rigid phenolic core factory-bonded to a 12.5mm tapered-edge gypsum plasterboard. Where the thinner boards in the range trade off some thermal performance for a slimmer profile, 82.5mm is the board for projects where the target U-value comes first and a single, high-performing board is preferred to doubling up layers.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 2400mm x 1200mm for 2.88m² of coverage, and weighs approximately 13.33kg\/m². Thermal conductivity holds at the same declared 0.019 W\/mK as every K118 thickness. The 70mm phenolic core gives a calculated thermal resistance of approximately 3.65 m²K\/W, the highest figure anywhere in the K118 range. As always, the finished wall's U-value depends on the complete build-up rather than the insulation board alone, so it needs calculating against the actual construction.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tapered edge on all four sides means joints fill and skim exactly like standard plasterboard, so there's no visible seam once decorated. On the reverse face, a low-emissivity composite foil acts as the board's integral vapour control layer: K118 is a moisture closed system, which works by keeping moisture out via the VCL and the wall's external leaf, rather than letting the wall breathe. The core is manufactured with a blowing agent of zero Ozone Depletion Potential and low Global Warming Potential, and resists mould and microbial growth.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eKingspan's own guidance confirms K118 for use on solid stonework and brickwork, with or without an existing lining, as well as masonry cavity walls and timber frame construction. It's also used as insulated drylining fixed at rafter level to form a sloping ceiling in loft conversions and pitched roof build-ups, typically working alongside a primary rafter insulation board such as Kooltherm K107. Fixed to timber battens, Kingspan's guidance specifies battens at 600mm vertical centres with a damp-proof-course strip between batten and wall, boards fixed with drywall screws at 300mm centres or galvanised clout nails at 150mm centres, and noggins positioned horizontally at floor and ceiling level at a maximum of 1200mm vertical centres. Install in line with the latest Kingspan technical guidance and the project specification, with particular care at joints, penetrations and perimeters so the integral vapour control layer performs as intended.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 82.5mm Kingspan Kooltherm K118:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory-bonded phenolic insulation and 12.5mm tapered-edge plasterboard in one board, removing the need for separate drylining\u003c\/li\u003e\n\u003cli\u003eThickest, highest-performing board in the K118 range at 82.5mm overall (70mm phenolic core)\u003c\/li\u003e\n\u003cli\u003eDeclared thermal conductivity of 0.019 W\/mK, constant across every K118 thickness\u003c\/li\u003e\n\u003cli\u003eCalculated thermal resistance of approximately 3.65 m²K\/W, the highest figure in the range\u003c\/li\u003e\n\u003cli\u003eTapered edge on all four sides for straightforward joint filling and skim finishing\u003c\/li\u003e\n\u003cli\u003eLow-emissivity composite foil facing acts as the board's integral vapour control layer, as part of a moisture closed system\u003c\/li\u003e\n\u003cli\u003eManufactured with a blowing agent of zero ODP and low GWP, and resists mould and microbial growth\u003c\/li\u003e\n\u003cli\u003eCompressive strength typically around 100 kPa at 10% compression (BS EN 826)\u003c\/li\u003e\n\u003cli\u003e2.88m² coverage per board from a 2400mm x 1200mm sheet\u003c\/li\u003e\n\u003cli\u003eConfirmed by Kingspan for solid stonework and brickwork (with or without existing lining), masonry cavity walls, timber frame walls, and rafter-level drylining in pitched roof\/loft conversions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBoards measure 2400mm x 1200mm and are sold individually, each covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eThe board is directional: plasterboard faces into the room, composite foil faces the substrate\u003c\/li\u003e\n\u003cli\u003eAs a moisture closed system, the vapour control layer needs to stay continuous (joints, penetrations and perimeters properly sealed) for the wall build-up to manage condensation correctly\u003c\/li\u003e\n\u003cli\u003eKingspan's fixing guidance for timber battens: 600mm vertical centres, a DPC strip between batten and wall, drywall screws at 300mm centres or clout nails at 150mm centres, with noggins at floor and ceiling level at up to 1200mm vertical centres\u003c\/li\u003e\n\u003cli\u003eNo separate lining step is needed since the plasterboard facing is already fixed to the board: fill and tape the tapered joints, then skim as normal\u003c\/li\u003e\n\u003cli\u003eStore flat, in a dry environment, off the ground and away from excess weight; cover with a weatherproof sheet if stored outside\u003c\/li\u003e\n\u003cli\u003eInsulation UK offers a bespoke cutting service if you need boards cut to size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eAs the thickest, best-performing board in the K118 range, 82.5mm Kingspan Kooltherm K118 gives projects the strongest single-board thermal result available, without giving up the drylining and vapour control built into every K118 board.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653327352142,"sku":"IUK01464","price":998.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k118-insulated-plasterboard-2400mm-x-1200mm-82-5mm-9-per-pack-iuk01464-drywall-1172612632.png?v=1749677057"},{"product_id":"100mm-rockwool-rwa45-pallet","title":"100mm Rockwool RWA45 Acoustic Slab  1.2m x 600mm  Bulk 20 packs","description":"\u003cp class=\"MsoNormal\"\u003eThe Rockwool RWA45 Acoustic Slab is a versatile and high-performance stone wool insulation designed for acoustic, thermal, and fire protection across a wide range of applications. Suitable for partition walls, ceilings, floors, roofs, and industrial or commercial spaces, it combines exceptional durability with outstanding safety and energy efficiency.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003c!-- [if !supportLists]--\u003eEffectively absorbs sound to reduce noise transmission between rooms and floors\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLow thermal conductivity of 0.035 W\/m·K, helping to improve energy efficiency and indoor comfort\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRated Euroclass A1 non-combustible, offering the highest level of fire safety with a melting point above 1000°C\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eWater repellent and rot resistant, preventing moisture build-up, damp, and decay for long-lasting performance\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHighly durable, maintaining its structure and performance over the lifetime of the building\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSemi-rigid, lightweight slabs that are easy to handle, cut, and install, with a density of 45 kg\/m³\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade from natural volcanic rock and recycled materials, contributing to an environmentally responsible build\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSuitable for residential, commercial, and industrial projects, including schools, hospitals, and offices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003c!-- [if !supportLists]--\u003eSuitable for use in partition walls, floors, ceilings, and roofs\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eCan be used between timber or steel stud partitions and timber frame floors\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eUse a utility or serrated knife to cut the slabs cleanly; wear gloves and goggles to avoid irritation\u003c\/li\u003e\n\u003cli\u003ePlease store under cover and clear of the ground. Avoid prolonged exposure to the elements, especially direct sunlight and rain\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; color: black; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eSpecialist PPE is not required, although if you are cutting the insulation in an unventilated area, it is recommended to use a suitable dust mask\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":52653844463950,"sku":"IUK01646","price":494.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/rockwool-rockwool-rwa45-acoustic-slab-1200mm-x-600mm-x-100mm-bulk-pallet-iuk01646-mineral-fibre-insulation-1172606283.webp?v=1749559920"},{"product_id":"25mm-knauf-rocksilk-rs100-1-2mm-x-600mm","title":"25mm Knauf Rocksilk RS100  1.2mm x 600mm","description":"\u003cp\u003eThe Rocksilk® RS range is built around density rather than thickness, and RS100 sits high on that ladder at 100 kg\/m³. That is what the 25mm slab is really for: adding mass to a construction where there is very little depth available to work with, in floors, wall systems and roof build-ups across residential, commercial and industrial projects.\u003c\/p\u003e\n\u003cp\u003eSlabs measure 1200mm x 600mm and are supplied 12 per pack, covering 8.64m². Declared thermal resistance is 0.70 m²K\/W at a thermal conductivity of 0.034 W\/mK.\u003c\/p\u003e\n\u003cp\u003eAt this density the slab keeps its shape and its edge when cut, so thin sections and narrow strips stay square instead of tearing or slumping into the gap they are meant to fill. Where a thin layer is doing acoustic or fire duty rather than thermal duty, that dimensional stability is the difference between a clean, continuous layer and a compromised one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRock mineral wool slab at a density of 100 kg\/m³\u003c\/li\u003e\n\u003cli\u003eDeclared thermal resistance of 0.70 m²K\/W\u003c\/li\u003e\n\u003cli\u003eThermal conductivity of 0.034 W\/mK\u003c\/li\u003e\n\u003cli\u003e1200mm x 600mm slabs, 12 per pack covering 8.64m²\u003c\/li\u003e\n\u003cli\u003eAdds density to floors, wall systems and roof build-ups where depth is limited\u003c\/li\u003e\n\u003cli\u003eHolds shape and edge definition when cut into thin sections\u003c\/li\u003e\n\u003cli\u003eEuroclass A1 non-combustible\u003c\/li\u003e\n\u003cli\u003eGeneric BRE Green Guide rating of A+\u003c\/li\u003e\n\u003cli\u003eVapour resistivity of 5.00 MNs\/g.m\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRS100 is chosen for its density; a lower-density Rocksilk® slab is not a like-for-like substitute\u003c\/li\u003e\n\u003cli\u003eCut with a large-bladed insulation knife or saw for a clean, square edge\u003c\/li\u003e\n\u003cli\u003eSlabs should be closely butted with no gaps to keep the layer continuous\u003c\/li\u003e\n\u003cli\u003eThin layers are less forgiving of poor alignment, so take care at joints and perimeters\u003c\/li\u003e\n\u003cli\u003eNot a decorative surface\u003c\/li\u003e\n\u003cli\u003eStore under cover, off the ground and protected from the weather\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Knauf","offers":[{"title":"Default Title","offer_id":52653848625486,"sku":"IUK01682","price":50.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/knauf-knauf-rocksilk-rs100-building-slab-25mm-1-2-x-600mm-iuk01682-mineral-fibre-insulation-1217946900.png?v=1769182452"},{"product_id":"50mm-knauf-rocksilk-rs100-1-2mm-x-600mm","title":"50mm Knauf Rocksilk RS100  1.2mm x 600mm","description":"\u003cp\u003eRock mineral wool melts above 1000°C, which is what puts RS100 in critical areas of a building rather than general ones. Non-combustibility tells you a material will not feed a fire. A melting point that high tells you it is still doing its job well into one, and that is the property specifiers are buying when they choose rock over other mainstream insulants.\u003c\/p\u003e\n\u003cp\u003e50mm Knauf Rocksilk® RS100 is a rock mineral wool slab at a density of 100 kg\/m³, classified Euroclass A1 to EN 13501-1. Slabs measure 1200mm x 600mm and are supplied 6 per pack, covering 4.32m². Declared thermal resistance is 1.45 m²K\/W at a thermal conductivity of 0.034 W\/mK.\u003c\/p\u003e\n\u003cp\u003eAt 50mm it is commonly found in separating constructions, partitions and light steel frame walls, the places where fire performance and sound transfer are both under scrutiny.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRock mineral wool with a melting temperature above 1000°C\u003c\/li\u003e\n\u003cli\u003eProvides longer periods of fire resistance than other mainstream insulants\u003c\/li\u003e\n\u003cli\u003eEuroclass A1 reaction to fire classification to EN 13501-1\u003c\/li\u003e\n\u003cli\u003eDensity of 100 kg\/m³\u003c\/li\u003e\n\u003cli\u003eDeclared thermal resistance of 1.45 m²K\/W\u003cbr\u003eThermal conductivity of 0.034 W\/mK\u003c\/li\u003e\n\u003cli\u003e1200mm x 600mm slabs, 6 per pack covering 4.32m²\u003c\/li\u003e\n\u003cli\u003eSuited to separating constructions, partitions and light steel frame walls\u003c\/li\u003e\n\u003cli\u003eDeclaration of Performance R4208MPCPR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReaction to fire and fire resistance are different things: A1 describes the material, while a fire resistance period belongs to the tested system\u003c\/li\u003e\n\u003cli\u003eCheck the system specification before substituting RS100 into a fire-rated build-up\u003c\/li\u003e\n\u003cli\u003eSlabs need a tight fit against framing members, with no voids left at the edges\u003c\/li\u003e\n\u003cli\u003eRot proof, non-hygroscopic and will not sustain vermin\u003c\/li\u003e\n\u003cli\u003eCuts cleanly with a saw or large-bladed knife\u003c\/li\u003e\n\u003cli\u003eKeep slabs dry and covered while stored on site\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Knauf","offers":[{"title":"Default Title","offer_id":52653849182542,"sku":"IUK01683","price":48.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/knauf-knauf-rocksilk-rs100-building-slab-25mm-1-2-x-600mm-iuk01682-mineral-fibre-insulation-1217946900.png?v=1769182452"},{"product_id":"75mm-knauf-rocksilk-rs100-1-2mm-x-600mm","title":"75mm Knauf Rocksilk RS100  1.2mm x 600mm","description":"\u003cp\u003eNoise travelling between flats, between offices or between floors of the same house is a structural problem, not a surface one, and it is solved inside the construction rather than on it. 75mm Knauf Rocksilk® RS100 is specified into separating floors, internal floors and partitions for exactly that reason: to cut transmission between spaces in multi-storey and multi-occupancy buildings.\u003c\/p\u003e\n\u003cp\u003eSlabs are 1200mm x 600mm, supplied 4 per pack and covering 2.88m². Declared thermal resistance is 2.20 m²K\/W at a thermal conductivity of 0.034 W\/mK.\u003c\/p\u003e\n\u003cp\u003ePerformance of that kind only counts if it lasts. The slab will not slump or degrade, so the layer installed on day one is the layer still working in twenty years, without settlement opening voids at the top of a partition or along a joist run where the sound would then find its way through.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduces noise transmission between spaces in multi-storey and multi-occupancy buildings\u003c\/li\u003e\n\u003cli\u003eSpecified into separating floors, internal floors and partitions\u003c\/li\u003e\n\u003cli\u003eDeclared thermal resistance of 2.20 m²K\/W\u003c\/li\u003e\n\u003cli\u003eThermal conductivity of 0.034 W\/mK\u003c\/li\u003e\n\u003cli\u003eDensity of 100 kg\/m³\u003c\/li\u003e\n\u003cli\u003e1200mm x 600mm slabs, 4 per pack covering 2.88m²\u003c\/li\u003e\n\u003cli\u003eWill not slump or degrade, maintaining performance for the life of the building\u003c\/li\u003e\n\u003cli\u003eEuroclass A1 non-combustible\u003c\/li\u003e\n\u003cli\u003eHolds the Indoor Air Comfort Gold certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInsulation reduces sound transmission as part of a construction; on its own it does not soundproof a space\u003cbr\u003eSound reduction figures belong to the tested system, so work to the system specification\u003c\/li\u003e\n\u003cli\u003eVoids undermine acoustic performance faster than they undermine thermal performance\u003c\/li\u003e\n\u003cli\u003eFill fully around noggins, services and penetrations rather than working around them\u003c\/li\u003e\n\u003cli\u003eMade with ECOSE® Technology, containing no added formaldehyde or phenol\u003c\/li\u003e\n\u003cli\u003ePackaging is short-term protection only; store under cover and off the ground\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Knauf","offers":[{"title":"Default Title","offer_id":52653849641294,"sku":"IUK01684","price":47.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/knauf-knauf-rocksilk-rs100-building-slab-25mm-1-2-x-600mm-iuk01682-mineral-fibre-insulation-1217946900.png?v=1769182452"},{"product_id":"100mm-knauf-rocksilk-rs100-1-2mm-x-600mm","title":"100mm Knauf Rocksilk RS100  1.2mm x 600mm","description":"\u003cp\u003e100mm is the thickest Rocksilk® RS100 slab and the strongest thermally, with a declared thermal resistance of 2.90 m²K\/W at a thermal conductivity of 0.034 W\/mK. Slabs are 1200mm x 600mm, supplied 3 per pack and covering 2.16m², with 16 packs to a pallet giving 34.56m².\u003c\/p\u003e\n\u003cp\u003eWhere it earns its place is breadth of use. The same slab works in ground floors, internal floors, roof build-ups, wall systems and frame construction, across residential, commercial and industrial projects. On a site running several of those elements at once, that means one product on the order, one pallet to manage and one specification to check rather than four.\u003c\/p\u003e\n\u003cp\u003eGetting the depth right is what makes the declared figure real. The slab should fill the joist, rafter or stud depth it sits in, at full thickness, without being squeezed into something shallower.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHighest thermal resistance in the Rocksilk® RS100 range at 2.90 m²K\/W\u003c\/li\u003e\n\u003cli\u003eThermal conductivity of 0.034 W\/mK\u003c\/li\u003e\n\u003cli\u003eDensity of 100 kg\/m³\u003c\/li\u003e\n\u003cli\u003eOne slab covering ground floors, internal floors, roofs, wall systems and frame construction\u003c\/li\u003e\n\u003cli\u003eSuitable for residential, commercial and industrial projects\u003c\/li\u003e\n\u003cli\u003e1200mm x 600mm slabs, 3 per pack covering 2.16m²\u003c\/li\u003e\n\u003cli\u003e16 packs per pallet giving 34.56m² per pallet\u003c\/li\u003e\n\u003cli\u003eEuroclass A1 non-combustible\u003c\/li\u003e\n\u003cli\u003eMade in Britain, EUCEB certified and DECLARE 'Red List Free'\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSlab thickness should match the depth of the joists, rafters or studs it fills\u003c\/li\u003e\n\u003cli\u003eCompressing the slab into a shallower space means it will not perform as declared\u003c\/li\u003e\n\u003cli\u003eInstallation quality drives the outcome: close butting and secure fixing matter as much as the declared figure\u003c\/li\u003e\n\u003cli\u003eEnvironmental Product Declaration EPD-IES-0031081 is published for the product\u003c\/li\u003e\n\u003cli\u003eNot a decorative surface\u003c\/li\u003e\n\u003cli\u003eCover slabs, keep them off the ground and protect from the weather if stored on site\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Knauf","offers":[{"title":"Default Title","offer_id":52653850198350,"sku":"IUK01656","price":46.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/knauf-knauf-rocksilk-rs100-building-slab-25mm-1-2-x-600mm-iuk01682-mineral-fibre-insulation-1217946900.png?v=1769182452"},{"product_id":"kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-25mm","title":"25mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 2.88m2 per board","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e25mm Kingspan Kooltherm K103 Floorboard is a rigid thermoset phenolic floor insulation board, supplied here as single sheets measuring 2.4m x 1.2m. It is the thinnest board in the K103 range, and at 25mm it is typically specified where floor depth is limited: as a thin upgrade or topping-up layer, in garage conversions, as part of a multi-layer build-up, or cut down to form the perimeter upstand strips that reduce heat loss at the floor edge.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEach sheet measures 2400mm x 1200mm and covers 2.88m². The phenolic core has a thermal conductivity of 0.019 W\/mK, one of the lowest figures available in rigid floor insulation, giving the 25mm board a thermal resistance of 1.30 m²K\/W. Its compressive strength of 120 kPa allows it to carry screed and normal floor loads, and it is faced on both sides with a glass tissue based facing, autohesively bonded to the core during manufacture. Because phenolic reaches a given thermal resistance in less thickness than higher-lambda materials, the 25mm board adds insulation where there is little room to spare.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe glass tissue facing keeps the board straightforward to handle and to cut cleanly, either with a fine-toothed saw or by scoring and snapping. Single sheets can therefore be trimmed accurately to fit between joists or sized into perimeter strips with minimal waste, which matters most on smaller areas and finishing work where offcuts add up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e25mm Kooltherm K103 is used in beam and dense block ground floors, suspended timber ground floors and solid concrete ground floors, installed below the screed, below the slab or between the joists depending on the construction. It should be laid over a damp proof membrane, installed in line with Kingspan's guidance and the project specification, and is not fitted directly over timber joists. It suits new build and refurbishment across domestic, commercial and industrial floors, and is compatible with underfloor heating systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Kingspan Kooltherm K103:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e25mm rigid thermoset phenolic floor insulation board, the thinnest board in the K103 range.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.019 W\/mK, one of the lowest available for rigid floor insulation.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal resistance (R-value) of 1.30 m²K\/W for the 25mm board.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive strength of 120 kPa, allowing it to carry screed and normal floor loads.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGlass tissue facing on both sides for clean cutting and straightforward handling.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSingle sheets of 2.4m x 1.2m covering 2.88m² each, so you order the exact quantity the job needs.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for beam and block, suspended timber and solid concrete floors, below slab or screed.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAdds thermal performance where floor build-up height is limited, including garage conversions and topping-up layers.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCuts down to form the minimum 25mm perimeter upstand strips that limit cold bridging at floor edges.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with underfloor heating systems and suited to both new build and refurbishment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eKingspan Kooltherm K103 must be installed over a damp proof membrane (minimum 1200 gauge polythene) and is not recommended in direct contact with subsoil.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe board resists the passage of water vapour but is not a vapour control layer; below a screed it should be overlaid with a separate polythene sheet, lapped and taped, to act as the VCL.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIt is not suitable for installation directly over timber joists; in suspended floors it sits between the joists on battens, saddle clips or nails.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAt 25mm the board's 1.30 m²K\/W resistance suits upgrade, top-up, multi-layer and perimeter-strip use; check the full floor build-up against your target U-value before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBuying for a whole floor?\u003c\/strong\u003e This board is also available by the pack (12 sheets, 34.56m²): \u003cstrong\u003e\u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.insulationuk.co.uk\/products\/kingspan-kooltherm-k103-phenolic-insulation\"\u003eview the K103 pack\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWhen floor depth is the constraint, the 25mm board adds thermal performance in the slimmest layer in the range, sheet by sheet.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653941129550,"sku":"BM02289","price":38.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-25mm-bm02289-phenolic-insulation-1172611255.png?v=1749650655"},{"product_id":"kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-50mm","title":"50mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 2.88m2 per board","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e50mm Kingspan Kooltherm K103 Floorboard is among the most widely specified thicknesses in the K103 floor range, supplied here as single sheets measuring 2.4m x 1.2m. It is the thickness many floor build-ups default to: enough phenolic insulation to make a real difference to a ground floor, without the depth that the higher thicknesses add to screed and slab levels.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 50mm the board reaches a thermal resistance of 2.60 m²K\/W, working from a thermal conductivity of 0.019 W\/mK that is among the lowest in rigid floor insulation. Each sheet measures 2400mm x 1200mm, covers 2.88m², and is faced on both sides with a glass tissue based facing autohesively bonded to the core. A compressive strength of 120 kPa means it sits under a screed or slab and carries normal floor loads once the floor is complete.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBecause phenolic delivers that resistance at a lower lambda than most floor insulants, the 50mm board reaches 2.60 m²K\/W in less depth than a higher-conductivity material would need for the same figure. On floors where finished levels are fixed by thresholds, doorways or existing surfaces, that matters: the insulation performs without lifting the floor more than the construction can take.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe board is used in beam and dense block ground floors, suspended timber ground floors and solid concrete ground floors, positioned below a screed, beneath a slab or between joists to suit the floor type. It is always laid over a damp proof membrane and fitted to Kingspan's guidance and the project specification, and it is not placed directly over timber joists. Across domestic, commercial and industrial work, in new build or refurbishment, it pairs with underfloor heating systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Kingspan Kooltherm K103:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOne of the most widely specified thicknesses in the K103 floor range.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal resistance (R-value) of 2.60 m²K\/W at 50mm.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRigid thermoset phenolic core at 0.019 W\/mK, among the lowest conductivity in floor insulation.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaches its R-value in less depth than higher-lambda boards, helping to hold finished floor levels.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e120 kPa compressive strength for screed and normal floor loads.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGlass tissue facing on both sides, autohesively bonded to the core.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSingle sheets at 2.4m x 1.2m, 2.88m² each, ordered to the exact board count.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFits beam and block, suspended timber and solid concrete floors, below slab or screed.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with underfloor heating, for new build and refurbishment alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA damp proof membrane (minimum 1200 gauge polythene) goes beneath the boards, which must not touch subsoil directly.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThough it resists water vapour, the board is not a vapour control layer; below a screed, lay a separate lapped and taped polythene sheet over it as the VCL.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoards are not fixed straight onto timber joists; in a suspended floor they drop between the joists onto battens, saddle clips or nails.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe 2.60 m²K\/W figure is for the board; the floor's U-value depends on the whole build-up, so run the calculation before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCovering a full floor?\u003c\/strong\u003e The 50mm is also sold by the pack: \u003cstrong\u003e\u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.insulationuk.co.uk\/products\/kingspan-kooltherm-k103-phenolic-insulation\"\u003eview the K103 pack\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAs the floor thickness most jobs start with, 50mm Kooltherm K103 in single sheets lets you buy exactly the count the floor takes, no surplus.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653941653838,"sku":"BM02290","price":60.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-50mm-bm02290-phenolic-insulation-1172611251.png?v=1749650644"},{"product_id":"kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-75mm","title":"75mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 2.88m2 per board","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e75mm Kingspan Kooltherm K103 Floorboard is a floor insulation board sold here as single sheets, each covering 2.88m². At 75mm it sits in the part of the range where you want a meaningful thermal resistance from a board that is still slim, and buying by the sheet suits part floors, irregular bays and topping up an order rather than ordering a full pack.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe board carries a thermal resistance of 3.90 m²K\/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W\/mK. It measures 2400mm x 1200mm, has a square edge and is faced on both sides with glass tissue bonded during manufacture, and holds a compressive strength of 120 kPa to BS EN 826:2013, so it copes with the load of a screed or slab laid over it.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBecause the core works at 0.019 W\/mK, 75mm reaches its 3.90 m²K\/W from a relatively shallow board. That matters on floors where build-up height is limited: door thresholds, the depth available beneath a finished floor level, or a refurbishment where the existing structure sets the ceiling on how much depth you have to play with. The slim board does the thermal work without eating into that allowance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e75mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards drop between the joists onto battens, saddle clips or nails rather than being fixed over them, and the board works with underfloor heating. Ordered as single sheets, it lets the board count follow the floor area exactly, with no leftover full pack to find a use for.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Kingspan Kooltherm K103:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e75mm rigid thermoset phenolic floor board with a fibre-free insulation core.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.019 W\/mK.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal resistance (R-value) of 3.90 m²K\/W at 75mm.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSquare edge, faced both sides with glass tissue bonded during manufacture.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoard measures 2400mm x 1200mm, covering 2.88m² per sheet.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSold as single sheets, so you order the exact board count the floor needs.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for beam and dense block, suspended timber and solid concrete ground floors.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with underfloor heating.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe 3.90 m²K\/W figure is the board's thermal resistance, not a finished floor U-value; check the U-value against the full build-up before ordering.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoards are laid over a damp proof membrane of at least 1200 gauge and should not be in direct contact with the subsoil.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIn suspended timber floors the boards drop between the joists onto battens, saddle clips or nails, rather than being fixed over the joists.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eK103 resists the passage of water vapour but does not act as a vapour control layer; under a screed, add a separate lapped and taped polythene sheet as the VCL.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWhere more depth is needed, boards can be doubled up in a break-bonded pattern so the joints in each layer do not line up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCovering a whole floor?\u003c\/strong\u003e The same 75mm board is sold in \u003cstrong\u003e\u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.insulationuk.co.uk\/products\/kingspan-kooltherm-k103-phenolic-insulation\"\u003epacks here\u003c\/a\u003e\u003c\/strong\u003e for bulk ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFor a floor that needs the resistance of 75mm without a deep build-up, single sheets let you buy the exact board count the job calls for and nothing spare.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653942210894,"sku":"BM02291","price":89.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-75mm-bm02291-phenolic-insulation-1172611247.png?v=1749650533"},{"product_id":"kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-100mm","title":"100mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 2.88m2 per board","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e100mm Kingspan Kooltherm K103 Floorboard is a floor insulation board sold here as single sheets, each covering 2.88m². At 100mm it gives the highest resistance available from a single K103 board, and buying by the sheet means the order can follow the floor area exactly, which suits part floors, irregular bays or topping up where a full pack would leave boards spare.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe board carries a thermal resistance of 5.25 m²K\/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W\/mK. It measures 2400mm x 1200mm, has a square edge and is faced on both sides with glass tissue bonded during manufacture, and holds a compressive strength of 120 kPa to BS EN 826:2013, so it copes with the load of a screed or slab laid over it.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWhat 100mm offers is the range's strongest single-board figure. At 5.25 m²K\/W it does in one layer what a thinner board would only reach by being doubled up, so the floor gets a single set of joints to butt and seal rather than two offset layers. Where the build-up depth allows for 100mm, that keeps the lay-up to one pass and the insulated layer simpler.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e100mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards drop between the joists onto battens, saddle clips or nails rather than being fixed over them, and the board works with underfloor heating. Bought as single sheets, the board count follows the floor exactly, with no leftover full pack to account for.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Kingspan Kooltherm K103:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e100mm rigid thermoset phenolic floor board with a fibre-free insulation core.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.019 W\/mK.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal resistance (R-value) of 5.25 m²K\/W at 100mm, the highest from a single K103 board.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSquare edge, faced both sides with glass tissue bonded during manufacture.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoard measures 2400mm x 1200mm, covering 2.88m² per sheet.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSold as single sheets, so you order the exact board count the floor needs.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for beam and dense block, suspended timber and solid concrete ground floors.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with underfloor heating.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe 5.25 m²K\/W figure is the board's thermal resistance, not the finished floor U-value; check the U-value against the full build-up before ordering.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIn suspended timber floors the boards drop between the joists onto battens, saddle clips or nails, rather than being fixed over the joists.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLay the boards over a damp proof membrane of at least 1200 gauge, keeping the insulation clear of the subsoil.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eK103 resists the passage of water vapour but does not act as a vapour control layer; under a screed, add a separate lapped and taped polythene sheet as the VCL.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFor thicknesses beyond 100mm the boards can be doubled up in a break-bonded pattern with the joints staggered between layers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCovering a whole floor?\u003c\/strong\u003e The same 100mm board is sold in \u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.insulationuk.co.uk\/products\/kingspan-kooltherm-k103-phenolic-insulation\"\u003e\u003cstrong\u003epacks here\u003c\/strong\u003e\u003c\/a\u003e for bulk ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFor a floor working to a demanding U-value where the depth is there for 100mm, single sheets let you buy the exact board count the job calls for and nothing spare.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653942571342,"sku":"BM02292","price":115.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-100mm-bm02292-phenolic-insulation-1172611243.png?v=1749650522"},{"product_id":"kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-150mm","title":"150mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 2.88m2 per board","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e150mm Kingspan Kooltherm K103 Floorboard is the deepest board in the range, sold here as single sheets covering 2.88m² each. At 150mm it gives the highest thermal resistance K103 offers, so it is the board reached for when a floor is being built to a low-energy or near-Passivhaus target, and buying by the sheet lets the order follow the floor area exactly for part floors, irregular bays or topping up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe board carries a thermal resistance of 7.85 m²K\/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W\/mK. It measures 2400mm x 1200mm, has a square edge and is faced on both sides with glass tissue bonded during manufacture, and holds a compressive strength of 120 kPa to BS EN 826:2013, so it copes with the load of a screed or slab laid over it.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWhat 150mm offers is the range's strongest figure from one board. Reaching 7.85 m²K\/W in a single layer means a demanding low-energy floor is insulated in one pass, with a single set of joints to butt and seal rather than the two offset layers a doubled-up build would call for. Where the build-up depth is there for 150mm, the deepest board keeps the lay-up to a single layer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e150mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards drop between the joists onto battens, saddle clips or nails rather than being fixed over them, with the support height set to suit the 150mm depth. The board works with underfloor heating, and bought as single sheets the board count follows the floor exactly with no leftover full pack to account for.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Kingspan Kooltherm K103:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e150mm rigid thermoset phenolic floor board with a fibre-free insulation core, the deepest in the K103 floorboard range.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.019 W\/mK.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal resistance (R-value) of 7.85 m²K\/W at 150mm, the highest in the range.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSquare edge, faced both sides with glass tissue bonded during manufacture.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoard measures 2400mm x 1200mm, covering 2.88m² per sheet.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSold as single sheets, so you order the exact board count the floor needs.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for beam and dense block, suspended timber and solid concrete ground floors.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with underfloor heating.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe 7.85 m²K\/W figure is the board's thermal resistance, not the finished floor U-value; check the U-value against the full build-up before ordering.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAt 150mm the support height matters: in suspended timber floors set the batten or saddle-clip height so the board sits between the joists, and check threshold and finished-floor clearances before ordering.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLay the boards over a damp proof membrane of at least 1200 gauge, keeping the insulation clear of the subsoil.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eK103 resists the passage of water vapour but does not act as a vapour control layer; under a screed, add a separate lapped and taped polythene sheet as the VCL.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e150mm is the deepest single board in the range; where a build needs more depth, two boards can be laid in a break-bonded pattern with the joints staggered between layers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCovering a whole floor?\u003c\/strong\u003e The same 150mm board is sold in \u003cstrong\u003e\u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.insulationuk.co.uk\/products\/kingspan-kooltherm-k103-phenolic-insulation\"\u003epacks here\u003c\/a\u003e\u003c\/strong\u003e for bulk ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFor a floor reaching a low-energy U-value in a single layer, single sheets let you buy the exact number of 150mm boards the job needs and nothing spare.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52653943783758,"sku":"BM02293","price":165.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k103-floorboard-insulation-2400mm-x-1200mm-single-sheets-150mm-bm02293-phenolic-insulation-1172611239.png?v=1749650413"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-25mm-12-per-pack-3456m2","title":"25mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m   34.56m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K107 Pitched Roof Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 is a cutting-edge insulation board specifically engineered for pitched roofs. This premium performance solution is ideal for a variety of applications, including tiled or slated roofs, dwarf walls, attic floors, dormer windows, and flat ceilings. Kooltherm K107 is the answer for homeowners looking to retrofit their attic space without the need for comprehensive re-roofing, offering an easy-to-install solution that seamlessly integrates into existing structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 boards are designed for ease, simplifying the installation process. Their lightweight and manageable size allow for straightforward cutting and handling, enabling quick adjustments to fit rafter spacings and specific project requirements. This user-friendly feature significantly reduces installation time, making K107 an efficient choice for both new builds and renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kingspan Kooltherm K107 sets the standard for thin, efficient insulation for pitched roofs, enabling exceptional U-values with reduced material thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Specifically engineered to resist sagging, K107 maintains its integrity and performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Ideal for attic conversions or renovations, K107 enhances usable space without compromising on insulation quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Its outstanding thermal performance potentially eliminates the necessity for supplementary insulated plasterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Equipped with low emissivity foil facings, K107 significantly lowers heat loss through the roof, contributing to substantial energy cost savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K107 is the go-to insulation solution for tiled or slated pitched warm roof spaces, offering unparalleled versatility and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation, guaranteeing superior performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, ensuring exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Both sides of Kooltherm K107 feature a low emissivity composite foil, bonded to the insulation core during production for enhanced thermal efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in 1200 x 2400mm sheets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating a wide array of insulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Rated Euroclass F under System 4 AVCP, highlighting its safety in fire scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, demonstrating robustness under physical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K107 for your next roofing project to ensure optimal thermal efficiency, reduced energy costs, and a durable, high-performing insulation solution. Transform your attic space and increase your home’s comfort and sustainability with K107.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654028587342,"sku":"IUK01395","price":462.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-25mm-12-per-pack-34-56m2-iuk01395-phenolic-insulation-1172610987.png?v=1749645851"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-50mm-6-per-pack-1728m2","title":"50mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m   17.28m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K107 Pitched Roof Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 is a cutting-edge insulation board specifically engineered for pitched roofs. This premium performance solution is ideal for a variety of applications, including tiled or slated roofs, dwarf walls, attic floors, dormer windows, and flat ceilings. Kooltherm K107 is the answer for homeowners looking to retrofit their attic space without the need for comprehensive re-roofing, offering an easy-to-install solution that seamlessly integrates into existing structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 boards are designed for ease, simplifying the installation process. Their lightweight and manageable size allow for straightforward cutting and handling, enabling quick adjustments to fit rafter spacings and specific project requirements. This user-friendly feature significantly reduces installation time, making K107 an efficient choice for both new builds and renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kingspan Kooltherm K107 sets the standard for thin, efficient insulation for pitched roofs, enabling exceptional U-values with reduced material thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Specifically engineered to resist sagging, K107 maintains its integrity and performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Ideal for attic conversions or renovations, K107 enhances usable space without compromising on insulation quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Its outstanding thermal performance potentially eliminates the necessity for supplementary insulated plasterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Equipped with low emissivity foil facings, K107 significantly lowers heat loss through the roof, contributing to substantial energy cost savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K107 is the go-to insulation solution for tiled or slated pitched warm roof spaces, offering unparalleled versatility and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation, guaranteeing superior performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, ensuring exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Both sides of Kooltherm K107 feature a low emissivity composite foil, bonded to the insulation core during production for enhanced thermal efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in 1200 x 2400mm sheets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating a wide array of insulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Rated Euroclass F under System 4 AVCP, highlighting its safety in fire scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, demonstrating robustness under physical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K107 for your next roofing project to ensure optimal thermal efficiency, reduced energy costs, and a durable, high-performing insulation solution. Transform your attic space and increase your home’s comfort and sustainability with K107.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654029046094,"sku":"IUK01396","price":357.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-50mm-6-per-pack-17-28m2-iuk01396-phenolic-insulation-1172610984.png?v=1749645842"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-60mm-5-per-pack-1440m2","title":"60mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m   14.40m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K107 Pitched Roof Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 is a cutting-edge insulation board specifically engineered for pitched roofs. This premium performance solution is ideal for a variety of applications, including tiled or slated roofs, dwarf walls, attic floors, dormer windows, and flat ceilings. Kooltherm K107 is the answer for homeowners looking to retrofit their attic space without the need for comprehensive re-roofing, offering an easy-to-install solution that seamlessly integrates into existing structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 boards are designed for ease, simplifying the installation process. Their lightweight and manageable size allow for straightforward cutting and handling, enabling quick adjustments to fit rafter spacings and specific project requirements. This user-friendly feature significantly reduces installation time, making K107 an efficient choice for both new builds and renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kingspan Kooltherm K107 sets the standard for thin, efficient insulation for pitched roofs, enabling exceptional U-values with reduced material thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Specifically engineered to resist sagging, K107 maintains its integrity and performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Ideal for attic conversions or renovations, K107 enhances usable space without compromising on insulation quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Its outstanding thermal performance potentially eliminates the necessity for supplementary insulated plasterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Equipped with low emissivity foil facings, K107 significantly lowers heat loss through the roof, contributing to substantial energy cost savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K107 is the go-to insulation solution for tiled or slated pitched warm roof spaces, offering unparalleled versatility and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation, guaranteeing superior performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, ensuring exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Both sides of Kooltherm K107 feature a low emissivity composite foil, bonded to the insulation core during production for enhanced thermal efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in 1200 x 2400mm sheets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating a wide array of insulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Rated Euroclass F under System 4 AVCP, highlighting its safety in fire scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, demonstrating robustness under physical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K107 for your next roofing project to ensure optimal thermal efficiency, reduced energy costs, and a durable, high-performing insulation solution. Transform your attic space and increase your home’s comfort and sustainability with K107.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654029144398,"sku":"IUK01397","price":354.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-60mm-5-per-pack-14-40m2-iuk01397-phenolic-insulation-1172610981.png?v=1749645733"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-70mm-4-per-pack-1152m2","title":"70mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m  11.52m²","description":"\u003cp dir=\"ltr\"\u003eKingspan Kooltherm K107 in 70mm is one of the most widely used thicknesses in the range, chosen where rafter or joist depth won't stretch to a thicker board. It's a rigid phenolic insulation board for pitched roofs, covering tiled or slated roofs, dwarf walls, attic floors, dormer windows and flat ceilings, and is a regular choice for retrofitting an attic without stripping the roof covering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e70mm K107 is light enough to handle single-handed on site, so cutting and fitting between rafters stays straightforward. Boards trim easily to suit rafter spacings, which keeps installation moving on both new builds and loft conversion work.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin Profile for the Space Available:\u003c\/strong\u003e K107's low-lambda phenolic core delivers strong U-values at a lower thickness than many alternative insulation materials, useful where rafter depth is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Engineered to resist sagging, K107 holds its shape and thermal performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Suited to attic conversions where roofing space is limited, adding usable space without needing a deeper board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Depending on the full build-up, 70mm K107 can reduce the need for supplementary insulated plasterboard, subject to the target U-value being met.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Low emissivity foil facings on both sides cut heat loss through the roof, helping to lower energy costs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e70mm Kooltherm K107 is specified for tiled or slated pitched roof spaces where rafter or joist depth is limited, including loft conversions carried out without re-roofing.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rigid, fibre-free thermoset phenolic insulation core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Resistance:\u003c\/strong\u003e 3.65 m²K\/W at 70mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Low emissivity composite foil on both sides, bonded to the core during production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.4m x 1.2m sheets, supplied 4 per pack (11.52m² per pack).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e K107 is available from 25mm to 150mm across the range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Euroclass F under System 4 AVCP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e70mm K107 is a solid choice when rafter depth is tight and you still need strong thermal performance from a single layer, keeping loft conversion and retrofit work moving without adding unnecessary build-up.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654030913870,"sku":"IUK01398","price":330.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-70mm-4-per-pack-11-52m2-iuk01398-phenolic-insulation-1172610978.png?v=1749645725"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-75mm-4-per-pack-1152m2","title":"75mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m   11.52m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K107 Pitched Roof Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 is a cutting-edge insulation board specifically engineered for pitched roofs. This premium performance solution is ideal for a variety of applications, including tiled or slated roofs, dwarf walls, attic floors, dormer windows, and flat ceilings. Kooltherm K107 is the answer for homeowners looking to retrofit their attic space without the need for comprehensive re-roofing, offering an easy-to-install solution that seamlessly integrates into existing structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 boards are designed for ease, simplifying the installation process. Their lightweight and manageable size allow for straightforward cutting and handling, enabling quick adjustments to fit rafter spacings and specific project requirements. This user-friendly feature significantly reduces installation time, making K107 an efficient choice for both new builds and renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kingspan Kooltherm K107 sets the standard for thin, efficient insulation for pitched roofs, enabling exceptional U-values with reduced material thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Specifically engineered to resist sagging, K107 maintains its integrity and performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Ideal for attic conversions or renovations, K107 enhances usable space without compromising on insulation quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Its outstanding thermal performance potentially eliminates the necessity for supplementary insulated plasterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Equipped with low emissivity foil facings, K107 significantly lowers heat loss through the roof, contributing to substantial energy cost savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K107 is the go-to insulation solution for tiled or slated pitched warm roof spaces, offering unparalleled versatility and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation, guaranteeing superior performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, ensuring exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Both sides of Kooltherm K107 feature a low emissivity composite foil, bonded to the insulation core during production for enhanced thermal efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in 1200 x 2400mm sheets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating a wide array of insulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Rated Euroclass F under System 4 AVCP, highlighting its safety in fire scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, demonstrating robustness under physical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K107 for your next roofing project to ensure optimal thermal efficiency, reduced energy costs, and a durable, high-performing insulation solution. Transform your attic space and increase your home’s comfort and sustainability with K107.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654031700302,"sku":"IUK01399","price":352.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-75mm-4-per-pack-11-52m2-iuk01399-phenolic-insulation-1172610975.png?v=1749645618"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-100mm-3-per-pack-864m2","title":"100mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m  8.64m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K107 Pitched Roof Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 is a cutting-edge insulation board specifically engineered for pitched roofs. This premium performance solution is ideal for a variety of applications, including tiled or slated roofs, dwarf walls, attic floors, dormer windows, and flat ceilings. Kooltherm K107 is the answer for homeowners looking to retrofit their attic space without the need for comprehensive re-roofing, offering an easy-to-install solution that seamlessly integrates into existing structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K107 boards are designed for ease, simplifying the installation process. Their lightweight and manageable size allow for straightforward cutting and handling, enabling quick adjustments to fit rafter spacings and specific project requirements. This user-friendly feature significantly reduces installation time, making K107 an efficient choice for both new builds and renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kingspan Kooltherm K107 sets the standard for thin, efficient insulation for pitched roofs, enabling exceptional U-values with reduced material thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Specifically engineered to resist sagging, K107 maintains its integrity and performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Ideal for attic conversions or renovations, K107 enhances usable space without compromising on insulation quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Its outstanding thermal performance potentially eliminates the necessity for supplementary insulated plasterboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Equipped with low emissivity foil facings, K107 significantly lowers heat loss through the roof, contributing to substantial energy cost savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K107 is the go-to insulation solution for tiled or slated pitched warm roof spaces, offering unparalleled versatility and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation, guaranteeing superior performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, ensuring exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Both sides of Kooltherm K107 feature a low emissivity composite foil, bonded to the insulation core during production for enhanced thermal efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in 1200 x 2400mm sheets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating a wide array of insulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Rated Euroclass F under System 4 AVCP, highlighting its safety in fire scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, demonstrating robustness under physical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K107 for your next roofing project to ensure optimal thermal efficiency, reduced energy costs, and a durable, high-performing insulation solution. Transform your attic space and increase your home’s comfort and sustainability with K107.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654032027982,"sku":"IUK01400","price":341.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-100mm-3-per-pack-8-64m2-iuk01400-phenolic-insulation-1172610972.png?v=1749645607"},{"product_id":"kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-120mm-2-per-pack-576m2","title":"120mm Kingspan Kooltherm K107 Pitched Roof Insulation Board  2.4m x 1.2m   5.76m²","description":"\u003cp dir=\"ltr\"\u003eRafter depth is often the real constraint on a pitched roof job, and 120mm Kingspan Kooltherm K107 is built to perform well within it: a thermal resistance of 6.30 m²K\/W from a board that doesn't need the full depth of the range's thicker options. As with the rest of the K107 range, it's a rigid phenolic board suited to tiled or slated roofs, dwarf walls, attic floors, dormer windows and flat ceilings, and it retrofits into an existing attic without re-roofing.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eEase of Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e120mm K107 handles easily thanks to its lighter overall weight, with clean, straightforward cuts even around awkward rafter spacings. That translates into faster fit-out, whether the job is a new build roof or a retrofit.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin Profile for the Performance:\u003c\/strong\u003e K107's low-lambda phenolic core delivers strong U-values at a lower thickness than many alternative insulation materials, which is exactly why 120mm still performs well against the deeper boards in the range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Engineered to resist sagging, K107 holds its shape and its thermal performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttic Space Transformation:\u003c\/strong\u003e Suited to attic conversions and renovations, adding usable space without needing the deepest board in the range to get there.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Additional Insulation Needs:\u003c\/strong\u003e Strong thermal performance at 120mm can reduce the need for supplementary insulated plasterboard, subject to the full build-up meeting the target U-value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Low emissivity foil facings on both sides cut heat loss through the roof, contributing to lower energy costs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e120mm Kooltherm K107 is specified for tiled or slated pitched warm roof spaces where rafter depth or available roof void is a limiting factor on how much insulation thickness the build-up can take.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rigid, fibre-free thermoset phenolic insulation core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Resistance:\u003c\/strong\u003e 6.30 m²K\/W at 120mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Low emissivity composite foil on both sides, bonded to the core during production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.4m x 1.2m sheets, supplied 2 per pack (5.76m² per pack).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e K107 is available from 25mm to 150mm across the range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire:\u003c\/strong\u003e Euroclass F under System 4 AVCP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eFor roofs where depth is tight but performance still matters, 120mm K107 delivers strong numbers without asking for more rafter space than the job can spare.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654033535310,"sku":"IUK01401","price":267.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k107-pitched-roof-insulation-board-2400mm-x-1200mm-120mm-2-per-pack-5-76m2-iuk01401-phenolic-insulation-1172610969.png?v=1749645601"},{"product_id":"kingspan-k110-soffit-board-2400mm-x-1200mm-70mm-4-per-pack-1152m2","title":"70mm Kingspan K110 Soffit Board  2.4m x 1.2m   11.52m²","description":"\u003cp\u003eKooltherm K110 Soffit Board is a state-of-the-art soffit insulation solution designed to meet the highest standards of energy efficiency and installation convenience.\u003c\/p\u003e\n\u003cp\u003eWith an exceptional thermal conductivity of 0.019 W\/mK, it enables the construction of thin soffit structures without compromising on insulation performance. Its ease of installation sets it apart from traditional insulation materials, providing a cost-effective and time-saving solution for modern building projects.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and Benefits\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kooltherm K110 is the thinnest insulation solution for soffits available, facilitating high U-values with minimal material thickness. This feature allows for sleeker architectural designs and maximises usable space beneath soffits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Installation:\u003c\/strong\u003e Designed for quick and easy installation, Kooltherm K110 can significantly reduce labour costs and project timelines, making it an ideal choice for projects with strict deadlines or budget constraints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication Areas\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K110 is specifically developed for insulating structural ceilings (soffits), enhancing the thermal efficiency of a wide range of buildings, from commercial properties to residential projects.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e L1200 x W450 x D90mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Facing:\u003c\/strong\u003e A glass tissue-based facing, adhesively bonded to the insulation core, ensuring a durable and reliable internal finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Facing:\u003c\/strong\u003e A low emissivity composite foil, also adhesively bonded to the insulation core, enhances the thermal resistance of the soffit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100kPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e BBA Certified, ensuring compliance with the highest industry standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire (Euroclass): \u003c\/strong\u003eKooltherm K110 achieves Euroclass B-s2,d0 when installed correctly (with foil face on the outside), when classified to EN 13501-1: 2018. The inner (non-exposed) glass tissue facing of Kooltherm K110 achieves C-s2,d0 when exposed to the heat source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A premium performance, lower-lambda rigid thermoset phenolic insulation, known for its exceptional insulation properties and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKooltherm K110 Soffit Board revolutionises soffit insulation, offering unmatched thermal efficiency and installation speed. Its innovative design and superior materials ensure that your building project benefits from the highest standards of insulation, contributing to a sustainable and comfortable indoor environment.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: #000000;\"\u003eDOWNLOADS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0602\/7008\/4277\/files\/kingspan-kooltherm-k110-brochure-en-gb-ie_29bed25a-49d5-4480-a422-c294908905b6.pdf?v=1710347632\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #000000;\"\u003eKingspan Kooltherm K110 Brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654034911566,"sku":"BM00152","price":347.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-k110-soffit-board-2400mm-x-1200mm-70mm-4-per-pack-11-52m2-bm00152-phenolic-insulation-1172610966.png?v=1749645491"},{"product_id":"kingspan-k110-soffit-board-2400mm-x-1200mm-90mm-3-per-pack-864m2","title":"90mm Kingspan K110 Soffit Board  2.4m x 1.2m   8.64m²","description":"\u003cp\u003eKooltherm K110 Soffit Board is a state-of-the-art soffit insulation solution designed to meet the highest standards of energy efficiency and installation convenience.\u003c\/p\u003e\n\u003cp\u003eWith an exceptional thermal conductivity of 0.019 W\/mK, it enables the construction of thin soffit structures without compromising on insulation performance. Its ease of installation sets it apart from traditional insulation materials, providing a cost-effective and time-saving solution for modern building projects.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and Benefits\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Kooltherm K110 is the thinnest insulation solution for soffits available, facilitating high U-values with minimal material thickness. This feature allows for sleeker architectural designs and maximises usable space beneath soffits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Installation:\u003c\/strong\u003e Designed for quick and easy installation, Kooltherm K110 can significantly reduce labour costs and project timelines, making it an ideal choice for projects with strict deadlines or budget constraints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication Areas\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K110 is specifically developed for insulating structural ceilings (soffits), enhancing the thermal efficiency of a wide range of buildings, from commercial properties to residential projects.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e L1200 x W450 x D90mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Facing:\u003c\/strong\u003e A glass tissue-based facing, adhesively bonded to the insulation core, ensuring a durable and reliable internal finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Facing:\u003c\/strong\u003e A low emissivity composite foil, also adhesively bonded to the insulation core, enhances the thermal resistance of the soffit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100kPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e BBA Certified, ensuring compliance with the highest industry standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction to Fire (Euroclass): \u003c\/strong\u003eKooltherm K110 achieves Euroclass B-s2,d0 when installed correctly (with foil face on the outside), when classified to EN 13501-1: 2018. The inner (non-exposed) glass tissue facing of Kooltherm K110 achieves C-s2,d0 when exposed to the heat source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A premium performance, lower-lambda rigid thermoset phenolic insulation, known for its exceptional insulation properties and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKooltherm K110 Soffit Board revolutionises soffit insulation, offering unmatched thermal efficiency and installation speed. Its innovative design and superior materials ensure that your building project benefits from the highest standards of insulation, contributing to a sustainable and comfortable indoor environment.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: #000000;\"\u003eDOWNLOADS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0602\/7008\/4277\/files\/kingspan-kooltherm-k110-brochure-en-gb-ie_29bed25a-49d5-4480-a422-c294908905b6.pdf?v=1710347632\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #000000;\"\u003eKingspan Kooltherm K110 Brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654035272014,"sku":"BM00154","price":324.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-k110-soffit-board-2400mm-x-1200mm-90mm-3-per-pack-8-64m2-bm00154-phenolic-insulation-1172610964.png?v=1749645484"},{"product_id":"kingspan-kooltherm-k112-phenolic-insulation-framing-board-2400mm-x-1200mm-50mm-6-per-pack-1728m2","title":"50mm Kingspan Kooltherm K112 Phenolic Insulation Framing Board  2.4m x 1.2m  17.28m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K112 Framing Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K112 Framing Board is a leading-edge insulation solution designed specifically for timber and steel framing systems. Offering a remarkable thermal conductivity of 0.019 W\/mK, Kooltherm K112 enables the achievement of targeted U-values with minimal insulation thickness, making it a top choice for both new build projects and refurbishments. It's particularly suited to Modern Methods of Construction (MMC), providing a flexible, efficient approach to insulation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eEffortless Installation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K112 has been developed with ease of installation in mind. Its lightweight nature ensures that the boards are not only easy to transport but also to handle and install, whether used between studs or as an insulating sheathing. This makes K112 an ideal solution for streamlining construction processes, saving time and labour costs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised Thickness:\u003c\/strong\u003e Among the thinnest insulation solutions for timber and steel frame walls, Kooltherm K112 allows for efficient use of space without compromising on thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for use between studs or as an external sheathing, providing flexibility in design and application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern Construction Compatibility:\u003c\/strong\u003e Tailored for Modern Methods of Construction (MMC), K112 supports innovative building techniques with its advanced features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and Manageable:\u003c\/strong\u003e Easy to transport, handle, and install, reducing the physical strain on builders and accelerating the construction timeline.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K112 is the insulation of choice for timber and steel framing systems, offering unmatched thermal efficiency and adaptability to various construction methodologies.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation for premium performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, providing exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Equipped with low emissivity composite foil on both sides, enhancing its thermal efficiency through autohesive bonding during manufacture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Standard sizes of 1200 x 2400mm to accommodate a wide range of project requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, offering versatility in insulation depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Safety:\u003c\/strong\u003e Euroclass F rating under System 4 AVCP, ensuring compliance with safety standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, indicating a high level of durability under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K112 for your next construction project to benefit from its superior insulation properties, ease of installation, and compatibility with modern building techniques. Elevate your building's energy efficiency and enjoy the long-term benefits of a well-insulated structure with K112.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654035796302,"sku":"IUK01411","price":452.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k112-phenolic-insulation-framing-board-2400mm-x-1200mm-50mm-6-per-pack-17-28m2-iuk01411-phenolic-insulation-1172610962.png?v=1749645478"},{"product_id":"kingspan-kooltherm-k112-phenolic-insulation-framing-board-2400mm-x-1200mm-60mm-5-per-pack-1440m2","title":"60mm Kingspan Kooltherm K112 Phenolic Insulation Framing Board  2.4m x 1.2m   14.40m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K112 Framing Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKooltherm K112 Framing Board is a leading-edge insulation solution designed specifically for timber and steel framing systems. Offering a remarkable thermal conductivity of 0.019 W\/mK, Kooltherm K112 enables the achievement of targeted U-values with minimal insulation thickness, making it a top choice for both new build projects and refurbishments. It's particularly suited to Modern Methods of Construction (MMC), providing a flexible, efficient approach to insulation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eEffortless Installation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K112 has been developed with ease of installation in mind. Its lightweight nature ensures that the boards are not only easy to transport but also to handle and install, whether used between studs or as an insulating sheathing. This makes K112 an ideal solution for streamlining construction processes, saving time and labour costs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised Thickness:\u003c\/strong\u003e Among the thinnest insulation solutions for timber and steel frame walls, Kooltherm K112 allows for efficient use of space without compromising on thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for use between studs or as an external sheathing, providing flexibility in design and application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern Construction Compatibility:\u003c\/strong\u003e Tailored for Modern Methods of Construction (MMC), K112 supports innovative building techniques with its advanced features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and Manageable:\u003c\/strong\u003e Easy to transport, handle, and install, reducing the physical strain on builders and accelerating the construction timeline.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K112 is the insulation of choice for timber and steel framing systems, offering unmatched thermal efficiency and adaptability to various construction methodologies.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade, lower-lambda rigid thermoset phenolic insulation for premium performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e 0.019 W\/mK, providing exceptional insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Equipped with low emissivity composite foil on both sides, enhancing its thermal efficiency through autohesive bonding during manufacture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Standard sizes of 1200 x 2400mm to accommodate a wide range of project requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, offering versatility in insulation depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Safety:\u003c\/strong\u003e Euroclass F rating under System 4 AVCP, ensuring compliance with safety standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e 100 kPa, indicating a high level of durability under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Kingspan Kooltherm K112 for your next construction project to benefit from its superior insulation properties, ease of installation, and compatibility with modern building techniques. 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Achieving unparalleled thermal conductivity rates as low as 0.021 W\/mK, Kooltherm K15 stands at the forefront of thermal insulation technology. Its advanced formulation ensures that it is one of the most thermally efficient products available on the market, offering substantial energy savings.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eEnhanced Building Performance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K15 not only improves your building's thermal efficiency but also contributes to a range of other significant advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Achieve your desired U-values with minimal insulation thickness, enabling sleeker, more aesthetically pleasing building designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Daylight:\u003c\/strong\u003e Thinner walls mean larger windows and more natural light, enhancing the ambiance and comfort of interior spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEase of Installation:\u003c\/strong\u003e The lightweight nature of Kooltherm K15 boards simplifies handling and installation, promoting construction efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue Enhancement:\u003c\/strong\u003e By maximising lettable space with its thin profile, Kooltherm K15 can significantly increase the lifetime value of your property.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWellbeing Focus:\u003c\/strong\u003e With a fibre-free core, Kooltherm K15 ensures a safer, healthier environment for occupants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K15 is the insulation choice for projects requiring superior performance behind rainscreen façades, offering flexibility and efficiency in modern construction practices.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality rigid thermoset phenolic insulation, guaranteeing premium performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Offers excellent thermal resistance with values of 0.022 W\/mK for thicknesses 25-44 mm and 0.021 W\/mK for 45-150 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Equipped with low emissivity composite foil facings on both sides, enhancing its thermal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard sizes of 1200 x 2400mm to suit a variety of project needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating different insulation requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Achieves a Euroclass C-s2,d0 rating, ensuring compliance with safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e exceeds 100 kPa when tested to BS EN 826:2013, indicating robust durability and load-bearing capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKingspan Kooltherm K15's unmatched thermal efficiency, streamlined installation process, and positive impact on building aesthetics, value, and occupant wellbeing make it the optimal choice for homeowners, builders and architects.\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654048051534,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k15-rainscreen-board-2400mm-x-1200mm-80mm-4-per-pack-11-52m2-phenolic-insulation-1172610935.png?v=1749645002"},{"product_id":"kingspan-kooltherm-k15-rainscreen-board-2400mm-x-1200mm-90mm-3-per-pack-864m2","title":"90mm Kingspan Kooltherm K15 Rainscreen Board  2.4m x 1.2m  8.64m²","description":"\u003cp\u003e\u003cstrong\u003eKingspan Kooltherm K15 Rainscreen Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K15 is a leading-edge insulation board designed specifically for integration behind rainscreen façades. Achieving unparalleled thermal conductivity rates as low as 0.021 W\/mK, Kooltherm K15 stands at the forefront of thermal insulation technology. Its advanced formulation ensures that it is one of the most thermally efficient products available on the market, offering substantial energy savings.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eEnhanced Building Performance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K15 not only improves your building's thermal efficiency but also contributes to a range of other significant advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Thin Insulation:\u003c\/strong\u003e Achieve your desired U-values with minimal insulation thickness, enabling sleeker, more aesthetically pleasing building designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Daylight:\u003c\/strong\u003e Thinner walls mean larger windows and more natural light, enhancing the ambiance and comfort of interior spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEase of Installation:\u003c\/strong\u003e The lightweight nature of Kooltherm K15 boards simplifies handling and installation, promoting construction efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue Enhancement:\u003c\/strong\u003e By maximising lettable space with its thin profile, Kooltherm K15 can significantly increase the lifetime value of your property.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWellbeing Focus:\u003c\/strong\u003e With a fibre-free core, Kooltherm K15 ensures a safer, healthier environment for occupants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKooltherm K15 is the insulation choice for projects requiring superior performance behind rainscreen façades, offering flexibility and efficiency in modern construction practices.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality rigid thermoset phenolic insulation, guaranteeing premium performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Offers excellent thermal resistance with values of 0.022 W\/mK for thicknesses 25-44 mm and 0.021 W\/mK for 45-150 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Equipped with low emissivity composite foil facings on both sides, enhancing its thermal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard sizes of 1200 x 2400mm to suit a variety of project needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Range:\u003c\/strong\u003e 25 - 150 mm, accommodating different insulation requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Achieves a Euroclass C-s2,d0 rating, ensuring compliance with safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Strength:\u003c\/strong\u003e exceeds 100 kPa when tested to BS EN 826:2013, indicating robust durability and load-bearing capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKingspan Kooltherm K15's unmatched thermal efficiency, streamlined installation process, and positive impact on building aesthetics, value, and occupant wellbeing make it the optimal choice for homeowners, builders and architects.\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52654048641358,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-kooltherm-k15-rainscreen-board-2400mm-x-1200mm-90mm-3-per-pack-8-64m2-phenolic-insulation-1172610934.png?v=1749645000"},{"product_id":"50mm-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm","title":"50mm Recticel Eurowall® Partial Fill Cavity Insulation Board 1200mm x 450mm - 10.80m2 per pack","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e50mm Recticel Eurowall® Cavity Insulation Board is a high-performance PIR insulation board designed for partial fill masonry cavity wall applications. The board is fixed against the inner leaf to leave a clear residual cavity, improving the thermal performance of the wall build-up while maintaining the partial fill detail.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEach board measures 1200mm x 450mm with a 50mm thickness. It has a declared thermal conductivity of 0.022 W\/mK and a thermal resistance (RD) of 2.25 m²K\/W at 50mm. The PIR core is faced on both sides with a gas diffusion tight multilayer foil carrying a low-emissivity grid pattern (ε 0.05), which contributes additional thermal resistance across the clear cavity when installed in a non-ventilated build-up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEurowall® Cavity has straight edges on all four sides, allowing boards to be butted closely together during installation. This helps reduce gaps between boards and limit thermal bridging across the insulation layer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe closed-cell PIR core has low moisture absorption, helping the board retain its thermal performance over time. Eurowall® Cavity should be installed in line with the latest Recticel technical guidance, project specification and relevant building requirements.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of Eurowall® Cavity Insulation Board:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e50mm PIR partial fill cavity insulation board for masonry cavity wall applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e0.022 W\/mK thermal conductivity for strong thermal performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eR-value \/ thermal resistance of 2.25 m²K\/W for the 50mm board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStraight edges on all four sides to help boards butt closely and reduce gaps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow-emissivity foil facing on both sides (ε 0.05), adding resistance across the clear cavity in a non-ventilated build-up\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow moisture absorption to help maintain thermal performance over time\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured in the UK to EN 13165:2012 + A2:2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eRecticel Eurowall® Cavity Insulation Board provides a partial fill insulation option for masonry cavity walls where thermal performance, board fit and long-term moisture resistance matter.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654096187726,"sku":"IUK01360","price":206.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm-50mm-20-per-pack-iuk01360-1172610815.webp?v=1749642478"},{"product_id":"75mm-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm","title":"75mm Recticel Eurowall® Partial Fill Cavity Insulation Board 1200mm x 450mm - 6.48m2 per pack","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe 75mm Recticel Eurowall® Cavity Insulation Board is a rigid PIR board for partial fill insulation of masonry cavity walls. It is fitted between the wall ties as the wall is built and held against the inner leaf with retaining discs at a minimum of three points per board, leaving a clear residual cavity that manages moisture across the wall.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 75mm the board carries a thermal resistance (RD) of 3.40 m²K\/W with a declared thermal conductivity of 0.022 W\/mK. The cavity needs to be wide enough to take the board and still leave the clear residual gap, so the wall build-up should be confirmed before specifying.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBoth faces carry a gas diffusion tight multilayer foil with a low-emissivity grid pattern (ε 0.05), which adds thermal resistance across the residual cavity when installed in a non-ventilated build-up. The straight edges on all four sides let boards butt tightly, and joints are staggered in a brick-bond pattern to limit thermal bridging through the insulation layer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe closed-cell PIR core absorbs little moisture, so the board holds its thermal performance over the life of the wall. Boards can be cut to size on site with a fine-toothed saw or sharp knife, and where a project calls for it a double layer can be installed with the joints offset between layers. The board suits new build and renovation work and should be installed in line with the latest Recticel technical guidance, project specification and relevant building requirements.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of 75mm Eurowall® Cavity:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRigid PIR partial fill cavity board with 3.40 m²K\/W thermal resistance at 75mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow 0.022 W\/mK thermal conductivity for strong performance per millimetre of thickness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil facing on both sides (ε 0.05), adding resistance across the residual cavity in a non-ventilated build-up\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStraight edges on all four sides for close-butted, staggered joints and reduced thermal bridging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFixed against the inner leaf with retaining discs, leaving a clear residual cavity to manage moisture\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eClosed-cell core with low moisture absorption to maintain long-term performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupplied 12 boards per pack, covering 6.48m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured in the UK to EN 13165:2012 + A2:2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eRecticel Eurowall® Cavity Insulation Board provides a partial fill insulation option for masonry cavity walls where thermal performance, board fit and long-term moisture resistance matter.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654098547022,"sku":"IUK01361","price":167.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm-75mm-12-per-pack-iuk01361-1172610812.webp?v=1749642248"},{"product_id":"80mm-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm","title":"80mm Recticel Eurowall® Partial Fill Cavity Insulation Board 1200mm x 450mm - 6.48m2 per pack","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe 80mm Recticel Eurowall® Cavity Insulation Board is a rigid PIR board for partial fill cavity wall insulation in masonry construction. Installed against the inner leaf with a clear residual cavity left to the outer leaf, it carries most of the thermal performance of the wall build-up while the rest of the construction makes up the balance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 80mm the board provides a thermal resistance (RD) of 3.60 m²K\/W with a declared thermal conductivity of 0.022 W\/mK. The rigid PIR core holds its shape well, giving good dimensional stability so boards stay true and joints stay closed once fixed. As a thicker board, the cavity needs to be wide enough to take it and still leave the clear residual gap, so the wall build-up should be confirmed before specifying.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBoth faces carry a gas diffusion tight multilayer foil with a low-emissivity grid pattern (ε 0.05), which adds thermal resistance across the residual cavity in a non-ventilated build-up. The straight edges on all four sides let boards butt closely so gaps and thermal bridging through the insulation layer are kept down.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe closed-cell PIR core absorbs little moisture, so the board holds its thermal performance over the life of the wall. It can be cut to size on site with a fine-toothed saw or sharp knife and suits both new build and renovation work. Install in line with the latest Recticel technical guidance, project specification and relevant building requirements.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of 80mm Eurowall® Cavity\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRigid PIR partial fill cavity board with 3.60 m²K\/W thermal resistance at 80mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow 0.022 W\/mK thermal conductivity for strong performance per millimetre of thickness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCarries most of the wall build-up's thermal performance in a partial fill detail\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil facing on both sides (ε 0.05), adding resistance across the residual cavity in a non-ventilated build-up\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStraight edges on all four sides for close-butted joints and reduced thermal bridging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGood dimensional stability so boards stay true and joints stay closed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eClosed-cell core with low moisture absorption to maintain long-term performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupplied 12 boards per pack, covering 6.48m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured in the UK to EN 13165:2012 + A2:2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eRecticel Eurowall® Cavity Insulation Board provides a partial fill insulation option for masonry cavity walls where thermal performance, board fit and long-term moisture resistance matter.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654099136846,"sku":"BM007292","price":178.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm-80mm-12-per-pack-bm007292-1172610809.webp?v=1749642239"},{"product_id":"100mm-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm","title":"100mm Recticel Eurowall® Partial Fill Cavity Insulation Board  1200mm x 450mm - 5.40m2 per pack","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe 100mm Recticel Eurowall® Cavity Insulation Board is a high-performance rigid PIR board for partial fill cavity wall insulation in masonry construction. It is fixed against the inner leaf with a clear residual cavity left to the outer leaf, and suits walls designed around a wider cavity where a high level of thermal resistance is needed from the board layer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 100mm the board provides a thermal resistance (RD) of 4.50 m²K\/W with a declared thermal conductivity of 0.022 W\/mK. Because it is a deep board, the cavity has to be wide enough to take the 100mm board and still leave the clear residual gap, so the cavity width and overall wall build-up should be confirmed at design stage before specifying.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBoth faces carry a gas diffusion tight multilayer foil with a low-emissivity grid pattern (ε 0.05), which adds thermal resistance across the residual cavity when installed in a non-ventilated build-up. The straight edges on all four sides let boards butt closely so gaps and thermal bridging through the insulation layer are kept down.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe closed-cell PIR core absorbs little moisture, so the board holds its thermal performance over the life of the wall. It can be cut to size on site with a fine-toothed saw or sharp knife and suits both new build and renovation work. Install in line with the latest Recticel technical guidance, project specification and relevant building requirements.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey Benefits of 100mm Eurowall® Cavity:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHigh-performance rigid PIR partial fill cavity board with 4.50 m²K\/W thermal resistance at 100mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow 0.022 W\/mK thermal conductivity for strong performance per millimetre of thickness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHigh board-layer resistance suited to wider-cavity builds in a partial fill detail\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil facing on both sides (ε 0.05), adding resistance across the residual cavity in a non-ventilated build-up\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStraight edges on all four sides for close-butted joints and reduced thermal bridging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eClosed-cell core with low moisture absorption to maintain long-term performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupplied 10 boards per pack, covering 5.40m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured in the UK to EN 13165:2012 + A2:2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eRecticel Eurowall® Cavity Insulation Board provides a partial fill insulation option for masonry cavity walls where thermal performance, board fit and long-term moisture resistance matter.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654099562830,"sku":"IUK01362","price":182.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-recticel-eurowall-partial-fill-cavity-insulation-board-1200mm-x-450mm-100mm-10-per-pack-iuk01362-1172610806.webp?v=1749642133"},{"product_id":"90mm-recticel-eurowall-full-fill-cavity-wall-insulation-1200mm-x-460mm","title":"90mm Recticel Eurowall+ Full Fill Cavity Wall Insulation 1200mm x 460mm - 5.40m2 per pack","description":"\u003cp dir=\"ltr\"\u003e90mm Recticel Eurowall®+ Full Fill Cavity Wall Insulation Board is a rigid PIR board for full fill cavity wall insulation in masonry construction. Unlike the partial fill Eurowall® Cavity range, it's designed to fill the cavity completely, leaving only a 10mm minimum residual gap rather than a full air cavity — the two products solve different specifications, so it's worth confirming which your project calls for before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach board measures 1200mm x 460mm (1190mm x 450mm as manufactured, before the tongue and groove joint) and is supplied 10 to a pack, covering 5.40m². At 90mm, the board delivers a thermal resistance (RD) of 4.05 m²K\/W from a declared thermal conductivity of 0.022 W\/mK, and can help achieve a U-value of 0.18 W\/m²K in a traditional 100mm cavity — useful where an existing wall design needs to be held rather than widened to hit a Part L target.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe tongue and groove profile on all four edges locks boards together during installation, cutting thermal bridging at the joints and adding protection against wind-driven rain and air leakage compared with a butt-jointed board. Facing differs by side: a grey alkali-resistant facing sits against the inner leaf, while a low-emissivity multi-layer aluminium foil faces into the residual cavity, adding further resistance across that gap.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInstall with a minimum 10mm residual cavity maintained throughout construction (larger residual cavities can be used where the project calls for it). The board is suitable for masonry cavity walls up to 25m in height, with additional requirements above 12m, and the BBA certificate covers use in any exposure zone — though an external render or other suitable finish may still be needed where that's normal practice for the build. NHBC accepts the board in all but very severe exposure locations with fair-faced masonry. For junctions and openings, Recticel publishes linear thermal bridging details with calculated Psi-values for SAP calculations, which is worth having to hand at design stage. Install in line with the latest Recticel technical guidance, project specification and relevant building requirements.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Benefits of 90mm Eurowall®+:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eRigid PIR full fill cavity board with a 4.05 m²K\/W thermal resistance at 90mm\u003c\/li\u003e\n\u003cli\u003eLow 0.022 W\/mK thermal conductivity across the full Eurowall®+ range\u003c\/li\u003e\n\u003cli\u003eCan help achieve a 0.18 W\/m²K U-value in a traditional 100mm cavity\u003c\/li\u003e\n\u003cli\u003eTongue and groove joints on all four sides for a locked fit and reduced thermal bridging\u003c\/li\u003e\n\u003cli\u003eIncreased protection against wind-driven rain and improved wind-tightness at the joints\u003c\/li\u003e\n\u003cli\u003eGrey alkali-resistant facing to the inner leaf, low-emissivity foil facing to the cavity side\u003c\/li\u003e\n\u003cli\u003eOnly a 10mm minimum residual cavity required, preserving wall thickness and internal space\u003c\/li\u003e\n\u003cli\u003eSuitable for masonry cavity walls up to 25m in height\u003c\/li\u003e\n\u003cli\u003eCE marked to EN 13165:2012 and manufactured to ISO 9001:2015 and ISO 14001:2015\u003c\/li\u003e\n\u003cli\u003eSupplied 10 boards per pack, covering 5.40m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot the same as Eurowall® Cavity:\u003c\/strong\u003e this is the full fill board. If your design needs a residual air gap rather than a filled cavity, the partial fill Eurowall® Cavity board is the one you want.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard sizing:\u003c\/strong\u003e boards are 1190mm x 450mm as manufactured; the tongue and groove joint brings the installed, sold size to 1200mm x 460mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure and finish:\u003c\/strong\u003e the BBA certificate covers all exposure zones, but a render coat or other suitable finish may still be needed where that's standard practice for the build.\u003c\/li\u003e\n\u003cli\u003eRecticel supplies calculated Psi-value thermal bridging details for junctions and openings, for use in SAP calculations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eWhere a project's wall thickness is fixed and the target U-value isn't, 90mm Eurowall®+ gives you the full fill route to get there without losing space on either side of the cavity.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654109688142,"sku":"IUK01402","price":110.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/90mm-recticel-eurowall-full-fill-cavity-wall-insulation-1200mm-x-460mm-hero.webp?v=1779194714"},{"product_id":"115mm-recticel-eurowall-full-fill-cavity-wall-insulation-1200mm-x-460mm","title":"115mm Recticel Eurowall®+ Full Fill Cavity Wall Insulation 1200mm x 460mm - 4.32m2 per pack","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWhen a project calls for a 125mm full fill cavity, the 115mm Recticel Eurowall®+ is the board that fits the brief. Specified where thinner boards cannot reach the required thermal target, it delivers a thermal resistance of 5.2 m²K\/W from the same 0.022 W\/mK PIR core that runs across the Eurowall®+ range, but with meaningfully more performance per wall build-up.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe board is manufactured at 1200mm x 460mm and comes in packs of 8, covering 4.32m² per pack. The 10mm residual cavity is maintained, keeping the installation process familiar for bricklayers and avoiding any need to adjust standard wall build-up details. Tongue and groove joints on all four edges lock boards together during installation, supporting continuity across the insulation layer and reducing the risk of gaps at board joints.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEurowall®+ is BBA certified, NHBC approved and LABC registered. It carries a grey alkali-resistant facing against the inner leaf and a low-emissivity reflective foil facing to the cavity side.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits of Recticel Eurowall+:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for 125mm\u003c\/strong\u003e full fill masonry cavity wall applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.2 m²K\/W thermal resistance\u003c\/strong\u003e, a significant step up from the 90mm equivalent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.022 W\/mK thermal conductivity\u003c\/strong\u003e across the full Eurowall®+ range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTongue and groove edges\u003c\/strong\u003e on all four sides for close board fit and reduced thermal bridging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mm residual cavity\u003c\/strong\u003e maintained for conventional bricklaying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrey alkali-resistant facing\u003c\/strong\u003e to inner leaf, low-emissivity foil facing to cavity side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBBA Certificate 23\/7035\u003c\/strong\u003e, NHBC approved, LABC Registered Detail EWW620.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 boards\u003c\/strong\u003e per pack, \u003cstrong\u003e4.32m²\u003c\/strong\u003e coverage per pack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecticel Eurowall+ is your go-to insulation solution, offering a blend of performance, ease of installation, and energy efficiency. Its advanced features make it an ideal choice for achieving enhanced insulation in any construction project, ensuring a sustainable, comfortable, and energy-efficient building environment.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654114046286,"sku":"IUK01405","price":124.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-115mm-recticel-eurowall-full-fill-cavity-wall-insulation-board-iuk01405-pir-insulation-1239249087.webp?v=1779204374"},{"product_id":"140mm-recticel-eurowall-full-fill-cavity-wall-insulation-1200mm-x-460mm","title":"140mm Recticel Eurowall+ Full Fill Cavity Wall Insulation 1200mm x 460mm – 4.32m² per pack","description":"\u003cp\u003e140mm Recticel Eurowall+ Full Fill Cavity Wall Insulation Board is a high-performance PIR insulation board designed for full fill masonry cavity wall applications. It is used where the wall build-up has been specified around a deeper insulation layer, helping to support strong thermal performance while allowing for a 10mm residual cavity during construction.\u003c\/p\u003e\n\u003cp\u003eEach board measures 1200mm x 460mm x 140mm and is supplied in a pack of 8 boards, covering 4.32m² per pack. With a declared thermal conductivity of 0.022 W\/mK and a thermal resistance value of 6.35 m²K\/W, 140mm Recticel Eurowall+ is suited to cavity wall projects where a high level of thermal resistance, board fit and installation practicality all matter.\u003c\/p\u003e\n\u003cp\u003eRecticel Eurowall+ features tongue and groove edges on all four sides, helping the boards fit closely together during installation. This edge profile supports better continuity between boards, helping to reduce gaps and minimise thermal bridging across the wall insulation layer. The board is designed for use in full fill masonry cavity wall construction and should be installed in line with the latest Recticel technical guidance, project specification and relevant building requirements. Its 10mm residual cavity approach leaves space for conventional bricklaying techniques, which can be useful on new-build, extension and self-build cavity wall projects where both performance and buildability need to be considered.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits of Recticel Eurowall+:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e140mm PIR full fill cavity wall insulation\u003c\/strong\u003e board designed for masonry cavity wall applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.022 W\/mK declared thermal conductivity\u003c\/strong\u003e to support strong thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-value \/ thermal resistance of 6.35 m²K\/W\u003c\/strong\u003e for the 140mm board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTongue and groove edges\u003c\/strong\u003e on all four sides to help boards fit closely together during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for use with a 10mm residual cavity\u003c\/strong\u003e, supporting conventional bricklaying techniques.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps reduce gaps between boards\u003c\/strong\u003e and limit thermal bridging across the insulation layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas diffusion tight multilayer\u003c\/strong\u003e foil facing on both sides, with a reflective grid pattern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for specified masonry cavity wall constructions\u003c\/strong\u003e when installed in line with Recticel guidance.\u003c\/li\u003e\n\u003cli\u003eSupplied as \u003cstrong\u003e8 boards\u003c\/strong\u003e per pack, covering \u003cstrong\u003e4.32m²\u003c\/strong\u003e per pack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecticel Eurowall+ is your go-to insulation solution, offering a blend of performance, ease of installation, and energy efficiency. Its advanced features make it an ideal choice for achieving enhanced insulation in any construction project, ensuring a sustainable, comfortable, and energy-efficient building environment.\u003c\/p\u003e","brand":"Recticel","offers":[{"title":"Default Title","offer_id":52654114472270,"sku":"IUK01406","price":151.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/recticel-140mm-recticel-eurowall-full-fill-cavity-wall-insulation-board-iuk01406-pir-insulation-1239264920.webp?v=1779211631"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/collections\/knauf-knauf-insulation-factoryclad-roll-35-uncut-220mm-3m-x-1-2m-bm005980-mineral-fibre-insulation-1216519864.png?v=1778074828","url":"https:\/\/www.insulationuk.co.uk\/collections\/material-type.oembed?page=16","provider":"Insulation UK","version":"1.0","type":"link"}