{"title":"Kingspan Wall Insulation","description":"","products":[{"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":"20mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-20mm","title":"20mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003e20mm Kingspan Thermawall® TW55 is the slimmest board in the Thermawall® TW55 range, a rigid thermoset polyisocyanurate (PIR) insulation board faced both sides with a low emissivity composite foil. At this thickness it earns its place where depth is the constraint rather than the target: window and door reveals, jambs, soleplate details and thin linings where a thicker board simply will not fit.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eEach board measures 2400mm x 1200mm and covers 2.88m². Thermal conductivity is 0.022 W\/mK, giving a thermal resistance of 0.90 m²K\/W*. Compressive stress is declared at 120 kPa at 10% compression when tested to BS EN 826.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eThe low emissivity foil on both faces reflects radiant heat and improves the thermal resistance of any unventilated cavity sitting next to the board. Because both sides are foiled, there is no right way round to worry about on site, which matters when you are cutting a lot of small pieces to fit awkward details.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eThermawall® TW55 is designed for timber frame and steel frame wall constructions, used between studs or as an insulating sheathing layer. At 20mm it is most often a supplementary layer, reducing localised heat loss at junctions and openings where continuity of insulation is hard to maintain. Install in line with current Kingspan guidance, the project specification and Building Regulations.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eKey Benefits of 20mm Kingspan Thermawall TW55:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003e20mm rigid thermoset polyisocyanurate (PIR) insulation board for timber and steel framing systems\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eThermal resistance of 0.90 m²K\/W*\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eLow emissivity composite foil facings on both \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"221\"\u003esides\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"221\"\u003e2400mm x 1200mm board covering \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"260\"\u003e2.88m²\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"260\"\u003eCompressive stress of 120 kPa \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"299\"\u003eat 10% compression to BS EN 826\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"333\"\u003eFibre-free core that is unaffected by \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"371\"\u003eair infiltration\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"371\"\u003eSlim profile for \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"407\"\u003ereveals, jambs and depth-restricted \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"443\"\u003edetails\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"443\"\u003eLight to handle and cuts \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"478\"\u003ecleanly with a fine toothed saw or \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"513\"\u003esharp knife\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eGood to Know\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003eVapour control:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003e the foil facings \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"39\"\u003eare not a vapour control layer. Where \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"77\"\u003eTW55 is used between studs or timbers, \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"116\"\u003ea separate VCL is required on the warm \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"155\"\u003eside.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"155\"\u003eReveal detailing:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"155\"\u003e \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"185\"\u003einsulating reveals reduces heat loss \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"222\"\u003earound openings, and the thermal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"255\"\u003eresistance of the insulation layer is \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"293\"\u003ethe key factor.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"293\"\u003eStorage:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"293\"\u003e store \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"330\"\u003eboards flat, clear of the ground and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"367\"\u003eunder cover. Boards that have got wet \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"405\"\u003eshould not be used.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"405\"\u003eResistant to the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"444\"\u003epassage of water vapour, with a core \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"481\"\u003eresistance greater than 50 MNs\/g.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"481\"\u003eThe \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"521\"\u003ecore resists mould and microbial growth \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"561\"\u003eand offers no food value to vermin.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"599\"\u003eWill remain effective for the life of \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"637\"\u003ethe building when correctly installed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eSmall board, specific job: 20mm TW55 is \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"40\"\u003ehow you keep insulation continuous \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"75\"\u003ewhere there is no room for anything \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"111\"\u003edeeper.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e*\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"1\"\u003eR-value calculated from the declared thermal conductivity (thickness in metres divided by lambda, rounded down to the nearest 0.05 m²K\/W). The current Kingspan brochure tabulates R-values from 25mm upwards.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655384953166,"sku":"IUK00049","price":357.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-20mm-iuk00049-insulation-1172606159.png?v=1749557647"},{"product_id":"25mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-25mm","title":"25mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eThermal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"8\"\u003ebridging around openings and at \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"40\"\u003ejunctions costs more heat than most \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"76\"\u003ebuild-ups allow for, and 25mm Kingspan \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"115\"\u003eThermawall® TW55 is one of the cleaner \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"154\"\u003eways to deal with it. It is a rigid \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"190\"\u003ethermoset polyisocyanurate (PIR) board \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"229\"\u003ewith low emissivity composite foil \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"264\"\u003efacings, sized 2400mm x 1200mm and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"299\"\u003ecovering 2.88m² per board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eAt 25mm the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"12\"\u003edeclared thermal resistance is 1.10 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"48\"\u003em²K\/W, based on a thermal conductivity \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"87\"\u003eof 0.022 W\/mK. Compressive stress is \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"124\"\u003e120 kPa at 10% compression to BS EN \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"160\"\u003e826, and the board is manufactured to \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"198\"\u003eBS EN 13165: 2012 + A2: 2016.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eThis \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"5\"\u003ethickness also has a role in twin-layer \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"45\"\u003econstruction. Kingspan's published \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"80\"\u003eexample build-ups show 25mm between \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"116\"\u003e89mm timber studs combined with a 25mm \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"155\"\u003einsulated sheathing layer achieving a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"193\"\u003eU-value of 0.27 W\/m²K behind 102.5mm \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"230\"\u003ebrickwork. Splitting the insulation \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"266\"\u003eacross two layers breaks the repeating \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"305\"\u003ethermal bridge created by the studwork \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"344\"\u003eitself, which a single layer between \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"381\"\u003estuds cannot do.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eUse it in timber \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"17\"\u003eframe and steel frame walls, between \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"54\"\u003estuds, as sheathing, or as part of an \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"92\"\u003einternal dry lining on solid masonry. \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"130\"\u003eCut with a fine toothed saw or score \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"167\"\u003eand snap, butt boards lightly, and seal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"207\"\u003eany remaining gaps to limit air \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"239\"\u003eleakage. Always work to the current \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"275\"\u003eKingspan literature and the project \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"311\"\u003especification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eKey Benefits of 25mm Kingspan Thermawall TW55:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003e25mm polyisocyanurate \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"24\"\u003e(PIR) board for timber and steel frame \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"63\"\u003ewall constructions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"63\"\u003eDeclared thermal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"101\"\u003eresistance of 1.10 m²K\/W\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"101\"\u003eThermal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"136\"\u003econductivity of 0.022 W\/mK\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"136\"\u003e2.88m² \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"172\"\u003ecoverage per 2400mm x 1200mm board\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"209\"\u003eFoil faced both sides, so either face \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"247\"\u003ecan be installed outwards\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"247\"\u003eSuits \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"281\"\u003etwin-layer build-ups that reduce \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"314\"\u003ebridging through studwork\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"314\"\u003eCompressive \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"354\"\u003estress of 120 kPa at 10% \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"379\"\u003ecompression\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"393\"\u003eEuroclass F reaction \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"414\"\u003eto fire \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"422\"\u003eunder System \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"435\"\u003e4 AVCP\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"444\"\u003eManufactured to BS EN \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"466\"\u003e13165: 2012 + A2: \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"484\"\u003e2016\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eGood to Know\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003eU-values are build-ups, not boards:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003e \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"42\"\u003ethe 0.27 W\/m²K \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"57\"\u003efigure above is \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"73\"\u003ea Kingspan \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"84\"\u003eexample for a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"98\"\u003especific \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"107\"\u003econstruction. Get a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"127\"\u003eproject-specific \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"144\"\u003ecalculation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"161\"\u003eMeasure before cutting:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"161\"\u003e stud \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"192\"\u003espacings vary, so check the gap \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"224\"\u003eon site rather than \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"244\"\u003eassuming 400 or 600 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"264\"\u003ecentres.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"264\"\u003eCondensation risk:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"264\"\u003e a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"300\"\u003econdensation risk analysis to \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"330\"\u003eBS 5250: 2021 should be carried \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"362\"\u003eout on thermal elements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"389\"\u003eCertified to BBA Certificate \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"418\"\u003e14\/5133 (current manufactured range).\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"458\"\u003eResponsibly sourced to BES 6001 'Good' \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"497\"\u003eat the Pembridge and Selby facilities.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"538\"\u003eChemically inert \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"555\"\u003eand safe to handle, with a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"582\"\u003eSafety Information Data Sheet available \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"622\"\u003efrom Kingspan.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eThin boards do heavy \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"21\"\u003elifting at junctions, and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"47\"\u003e25mm TW55 is the size to reach for when \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"87\"\u003econtinuity matters more than depth.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655386820942,"sku":"BM000911","price":23.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-25mm-iuk00050-insulation-1172606163.png?v=1749557758"},{"product_id":"30mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-30mm","title":"30mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003e30mm Kingspan \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"14\"\u003eThermawall® TW55 sits at the point \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"49\"\u003ewhere a batten-depth board starts to \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"86\"\u003emake a measurable difference to a wall. \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"126\"\u003eIt is a fibre-free rigid thermoset \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"161\"\u003epolyisocyanurate (PIR) insulation core \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"200\"\u003ewith low emissivity composite foil \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"235\"\u003ebonded to both faces during \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"263\"\u003emanufacture, supplied at 2400mm x \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"297\"\u003e1200mm and covering 2.88m² per board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eD\u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"1\"\u003eeclared thermal resistance is 1.35 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"36\"\u003em²K\/W at a thermal conductivity of \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"71\"\u003e0.022 W\/mK.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eInternal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"9\"\u003edry lining on solid masonry is a common \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"49\"\u003ehome for this \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"63\"\u003ethickness. The board fits between a \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"99\"\u003emechanically fixed timber framework, \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"136\"\u003ewith softwood stop battens \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"163\"\u003enailed to the sides of the timbers to \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"201\"\u003estop the boards shifting, and the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"235\"\u003eplasterboard lining restraining them \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"272\"\u003eonce fixed. A 25mm minimum air space \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"309\"\u003ebetween the insulation and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"336\"\u003ethe masonry should be maintained, \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"370\"\u003eso the framework needs to be deep \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"404\"\u003eenough for both.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eIn timber frame \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"16\"\u003ewalls, Kingspan's example figures show \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"55\"\u003e30mm between 89mm studs giving 0.45 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"91\"\u003eW\/m²K with a standard breathable \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"124\"\u003emembrane behind 102.5mm brickwork, \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"159\"\u003eimproving to 0.35 W\/m²K with a foil \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"195\"\u003efaced bubble membrane. The same 30mm \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"232\"\u003eused in a twin 30 + 30 arrangement, \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"268\"\u003ebetween studs and as sheathing, is \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"303\"\u003eshown at 0.24 W\/m²K.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003eInstall in \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"11\"\u003eaccordance with current Kingspan \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"44\"\u003eguidance, the project specification \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"80\"\u003eand applicable Building Regulations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eKey Benefits of 30mm Kingspan Thermawall TW55:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003e30mm rigid PIR insulation \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"28\"\u003eboard for timber and steel framing \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"63\"\u003esystems\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"63\"\u003eThermal resistance of 1.35 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"100\"\u003em²K\/W\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"100\"\u003eThermal \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"116\"\u003econductivity of 0.022 W\/mK\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"116\"\u003eLow \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"149\"\u003eemissivity composite foil facings that \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"188\"\u003eimprove the thermal resistance of an \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"225\"\u003eadjacent unventilated cavity\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"225\"\u003e2400mm x \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"265\"\u003e1200mm boards covering 2.88m²\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"265\"\u003eSuited \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"304\"\u003eto internal dry lining between a timber \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"344\"\u003eframework\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"344\"\u003eCompressive stress of 120 \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"382\"\u003ekPa at 10% compression to BS EN 826\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"420\"\u003eResistant to the passage of water \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"454\"\u003evapour\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"454\"\u003eLight enough for single-handed \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"494\"\u003ehandling on site\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"2\"\u003eGood to Know\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003eAir space:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"4\"\u003e internal dry lining \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"37\"\u003edetails require a 25mm minimum \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"68\"\u003eair space between the insulation and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"105\"\u003ethe masonry wall.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"105\"\u003eFixings:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"105\"\u003e large \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"144\"\u003eheaded clout nails work as a temporary \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"183\"\u003ehold to the stop battens before the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"219\"\u003elining goes on.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"239\"\u003eMembrane choice matters:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"239\"\u003e the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"270\"\u003ebreathable membrane specified changes \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"308\"\u003ethe achieved U-value noticeably in \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"343\"\u003etimber frame build-ups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"343\"\u003eA separate \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"380\"\u003evapour control layer is needed on the \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"418\"\u003ewarm side when insulating between \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"452\"\u003etimbers.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"452\"\u003eManufactured under ISO 9001: \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"492\"\u003e2015 and ISO 14001: 2015 certified \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"527\"\u003emanagement systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"527\"\u003eBoard edges and \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"565\"\u003ejoints should be protected from weather \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"605\"\u003eat the end of each working day.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_yu34g_39\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"0\"\u003e30mm \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"5\"\u003eTW55 is the sensible starting thickness \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"45\"\u003eonce you have batten depth to work \u003c\/span\u003e\u003cspan class=\"_animating_yu34g_10\" data-newtext-seq=\"80\"\u003ewith.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655388983630,"sku":"IUK00051","price":288.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-30mm-iuk00051-insulation-1172606166.png?v=1749557768"},{"product_id":"40mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-40mm","title":"40mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e40mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) insulation board for timber frame and steel frame wall constructions, faced on both sides with a low emissivity composite foil. Boards measure 2400mm x 1200mm and cover 2.88m².\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eWith a thermal conductivity of 0.022 W\/mK, the 40mm board gives a declared thermal resistance of 1.80 m²K\/W, a useful step up from 30mm without demanding any extra depth from the framework beyond the 10mm.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe reason PIR does so much in so little depth comes down to the core. A closed, fibre-free thermoset structure holds its shape, is unaffected by air infiltration and does not slump within a stud bay over time, so the insulation you specify on paper stays where it was fitted. That stability is what allows a 40mm layer to compete with far deeper alternatives.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eTypical applications include refurbishment dry lining between shallow timbers, partial fill of stud bays where a service void is wanted, and twin-layer construction. Kingspan's example tables show 40mm between studs at 0.38 W\/m²K with 140mm deep timbers and a standard membrane, and a 40 + 40 twin layer at 0.21 W\/m²K. Follow current Kingspan literature, the project specification and Building Regulations when installing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 40mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e40mm polyisocyanurate (PIR) wall insulation board, 2400mm x 1200mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 1.80 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2.88m² coverage per board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRigid thermoset core that holds its shape within stud bays\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides for reflective performance against an unventilated cavity\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnaffected by air infiltration\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eService voids:\u003c\/strong\u003e partial filling a deeper stud leaves room for cables and pipework without cutting into the insulation layer.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSealing penetrations:\u003c\/strong\u003e sockets, plumbing and wiring runs should be sealed with flexible sealant or urethane foam to limit air leakage.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSolvents:\u003c\/strong\u003e the core is not resistant to some solvent-based adhesives, particularly those containing methyl ethyl ketone.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWater vapour resistance greater than 50 MNs\/g for the core and greater than 100 MNs\/g for the facing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDamaged boards, or boards in contact with harsh solvents or acids, should not be used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eA dependable mid-thin option: 40mm TW55 gives you real thermal resistance without eating into the build-up.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655389704526,"sku":"IUK00052","price":265.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-40mm-iuk00052-insulation-1172606175.png?v=1749557893"},{"product_id":"50mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-50mm","title":"50mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e50mm is the workhorse of the Thermawall® TW55 range, the thickness most often specified when a wall needs a genuine performance improvement rather than a token layer. Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) insulation board with low emissivity composite foil facings, supplied at 2400mm x 1200mm with 2.88m² coverage per board.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe 50mm board carries a declared thermal resistance of 2.25 m²K\/W at a thermal conductivity of 0.022 W\/mK, with compressive stress of 120 kPa at 10% compression to BS EN 826.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eIt works hard in refurbishment. Kingspan's internal dry lining examples pair 50mm TW55 between 75mm deep timbers on a 215mm solid brick wall with Kingspan Kooltherm® K118 fixed to the timbers, achieving U-values from 0.25 down to 0.20 W\/m²K depending on the K118 thickness chosen. Used as insulated sheathing on an 89mm or 140mm timber frame behind 102.5mm brickwork, 50mm is shown at 0.27 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eSuitable for timber frame and steel frame walls, between studs, as insulating sheathing, or within an internal dry lining system. Install in line with the latest Kingspan technical guidance and the project specification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 50mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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 rigid PIR insulation board for timber and steel framing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 2.25 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCan be used between studs or as an insulating sheathing layer\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides, so orientation on site is not a concern\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFibre-free core, easy to cut and handle\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured to BS EN 13165: 2012 + A2: 2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eSheathing beats bridging:\u003c\/strong\u003e sheathing the frame externally is the most effective way to cut cold bridging at junctions.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTwo layers, no gaps:\u003c\/strong\u003e where insulation is fitted both between and outside studs, fix so there is no air space between the layers.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eButt joints tightly:\u003c\/strong\u003e accurate trimming and lightly butted boards keep the insulation layer continuous.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe foil facings are a thermal facing, not a vapour control layer.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good'.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReflective facings can be slippery when wet and reflect UV, so eye protection is sensible in bright weather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eIf you are specifying one thickness across a refurbishment, 50mm TW55 is usually where the numbers and the build-up meet in the middle.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655390425422,"sku":"BM000914","price":36.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-50mm-iuk00053-insulation-1172606180.png?v=1749558007"},{"product_id":"60mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-60mm","title":"60mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e60mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) board designed for timber frame and steel frame wall constructions, faced on both sides with low emissivity composite foil. Each 2400mm x 1200mm board covers 2.88m² and delivers a declared thermal resistance of 2.70 m²K\/W from a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThis thickness suits 89mm studwork particularly well. Filling 60mm of an 89mm bay leaves a 29mm gap that can be used for services or taken up by a batten and lining, and Kingspan's tables show that arrangement at 0.33 W\/m²K behind 102.5mm brickwork with a standard breathable membrane, improving to 0.28 W\/m²K with a foil faced bubble membrane. As insulated sheathing on timber frame it is shown at 0.24 W\/m²K, and on steel frame at 0.25 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe board is also a common choice for twin-layer work: 60 + 60 across studs and sheathing is shown at 0.16 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eCut with a fine toothed saw or score and snap over a straight edge. Measure stud spacings first, ensure a tight fit against adjoining timbers and fill gaps with expanding urethane sealant. Install in accordance with current Kingspan guidance and the project specification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 60mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e60mm PIR insulation board sized 2400mm x 1200mm, covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 2.70 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWell matched to 89mm studwork with room left for services\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow emissivity foil facings on both sides\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResistant to the passage of water vapour\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuits both between-stud and insulating sheathing applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eStop battens:\u003c\/strong\u003e softwood battens nailed to the side of the studs prevent boards moving within the bay.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGap filling:\u003c\/strong\u003e expanding urethane sealant at board-to-timber junctions keeps the layer continuous.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSteel frame:\u003c\/strong\u003e vertical board joints should coincide with a vertical steelwork member when sheathing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe core resists short-term contact with petrol and most dilute acids, alkalis and mineral oils.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured under ISO 45001: 2018 and ISO 50001: 2018 certified management systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e60mm TW55 hits a sweet spot for 89mm frames: solid thermal resistance with depth left over for the services run.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655392358734,"sku":"IUK00054","price":222.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-60mm-iuk00054-insulation-1172606181.png?v=1749558010"},{"product_id":"70mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-70mm","title":"70mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eFill an 89mm stud bay with 70mm Kingspan Thermawall® TW55 and you are close to the practical limit of what a single between-stud layer can achieve in a standard timber frame wall. Kingspan's figures put 70mm between 89mm studs at 0.31 W\/m²K behind 102.5mm brickwork with a standard breathable membrane, falling to 0.26 W\/m²K with a foil faced bubble membrane.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThermawall® TW55 is a fibre-free rigid thermoset polyisocyanurate (PIR) insulation core, foil faced on both sides, supplied in 2400mm x 1200mm boards covering 2.88m². The 70mm board has a declared thermal resistance of 3.15 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eWhere a single layer is not enough, 70mm is also the thickest board Kingspan tabulates for twin-layer stud and sheathing construction, showing 70 + 70 at 0.14 W\/m²K. Adding Kooltherm® K118 inside the studs takes the 70mm between-stud build-up down as far as 0.15 W\/m²K depending on the K118 thickness.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eSuitable for new build and refurbishment across timber and steel framing systems. Install in line with current Kingspan technical literature, the project specification and Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 70mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e70mm rigid PIR wall insulation board for timber and steel framing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 3.15 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFills an 89mm stud bay with room for a stop batten detail\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2.88m² coverage per 2400mm x 1200mm board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides for reflective performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnaffected by air infiltration\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured to BS EN 13165: 2012 + A2: 2016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eBridging is the limit:\u003c\/strong\u003e studwork can account for 15% or more of the internal wall area, which is why a second layer often outperforms a thicker single one.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFlush fitting:\u003c\/strong\u003e boards can be set flush with the inside or outside face of the studs, with the detail changing where the stop battens go.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVapour control:\u003c\/strong\u003e where TW55 is used between studs with no insulated sheathing, a vapour control layer must be installed.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWater vapour resistance greater than 100 MNs\/g for the composite foil facing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good' at Pembridge and Selby.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBIM objects are available from the Kingspan website.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eFor a standard 89mm timber frame, 70mm TW55 gets the most out of the bay you already have.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655392817486,"sku":"IUK00055","price":192.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-70mm-iuk00055-insulation-1172606189.png?v=1749558133"},{"product_id":"75mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-75mm","title":"75mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e75mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) insulation board with low emissivity composite foil facings on both sides, supplied at 2400mm x 1200mm and covering 2.88m² per board. Declared thermal resistance is 3.40 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe odd-sounding 75mm is there for a reason: it drops neatly into 100mm deep timbers on a refurbishment dry lining, leaving the 25mm minimum air space between the insulation and the masonry that the detail requires. Kingspan's example table shows that arrangement on a 215mm brick wall at 0.31 W\/m²K with no additional lining, improving to between 0.21 and 0.15 W\/m²K once Kooltherm® K118 is fixed to the timbers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eIn new timber frame, 75mm between 140mm deep studs is shown at 0.28 W\/m²K with a standard breathable membrane. As insulated sheathing behind 102.5mm brickwork it is shown at 0.21 W\/m²K on timber frame and 0.21 W\/m²K on 100mm or 150mm deep steel frame.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in accordance with the latest Kingspan guidance, the project specification and applicable Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 75mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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 polyisocyanurate (PIR) board for timber and steel frame walls\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 3.40 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFits 100mm deep timbers while preserving the 25mm air space in dry lining details\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards, 2.88m² coverage\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow emissivity foil facings on both faces\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuits between-stud, sheathing and internal dry lining applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eDPC backing:\u003c\/strong\u003e timber framework for internal dry lining should be backed with strips of damp proof course before fixing to the masonry.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCheck the spacings:\u003c\/strong\u003e measure between timbers before cutting, as spacings vary.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWarm side lining:\u003c\/strong\u003e an internal insulation layer such as K118 reduces heat loss but can increase losses at floor junctions, so detail carefully.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThe foil facings are not a vapour control layer.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eChemically inert and safe to use, with a Safety Information Data Sheet available from Kingspan.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStorage inside a building is preferred; if stored outside, stack clear of the ground under an opaque cover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e75mm TW55 is the refurbishment thickness: it fits the framework depth builders actually use.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655393571150,"sku":"BM000917","price":51.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-75mm-iuk00056-insulation-1172606193.png?v=1749558243"},{"product_id":"80mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-80mm","title":"80mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e80mm Kingspan Thermawall® TW55 is a fibre-free rigid thermoset polyisocyanurate (PIR) insulation board for timber frame and steel frame wall constructions. Boards measure 2400mm x 1200mm, cover 2.88m² and carry a declared thermal resistance of 3.60 m²K\/W from a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eAt this thickness the board is generally working within a 140mm deep stud or as a sheathing layer. Between 140mm timber studs behind 102.5mm brickwork, Kingspan's tables show 80mm at 0.27 W\/m²K with a standard breathable membrane and 0.23 W\/m²K with a foil faced bubble membrane. Used as insulated sheathing on timber frame the same thickness is shown at 0.20 W\/m²K, and on steel frame at 0.21 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe gap between those numbers is the point. Insulation fitted between studs is bridged by the timber running through it; insulation fitted across the outside of the frame is not. Moving the same 80mm board from one position to the other changes the achieved U-value more than adding another 20mm of thickness would.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in line with current Kingspan literature, the project specification and relevant Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 80mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e80mm rigid PIR insulation board, 2400mm x 1200mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 3.60 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2.88m² coverage per board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEffective as an insulating sheathing layer over timber or steel frame\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides, installable either way round\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured under an ISO 9001: 2015 certified management system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003ePosition over thickness:\u003c\/strong\u003e sheathing the frame externally removes the repeating thermal bridge that between-stud insulation cannot avoid.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFixing to steel:\u003c\/strong\u003e follow the steel frame manufacturer's recommendations, with joints landing on vertical members.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWall ties:\u003c\/strong\u003e timber frame ties should coincide with the underlying studs, head rails and sole plates.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResistant to the passage of water vapour.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDurability: correctly installed, the board remains effective for the life of the building.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFree U-value calculations are available through Kingspan's technical service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e80mm TW55 rewards thinking about where the layer sits, not just how thick it is.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655395668302,"sku":"IUK00057","price":222.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-80mm-iuk00057-insulation-1172606199.png?v=1749558481"},{"product_id":"90mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-90mm","title":"90mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e90mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) wall insulation board faced both sides with a low emissivity composite foil, supplied at 2400mm x 1200mm with 2.88m² coverage. The declared thermal resistance is 4.05 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eCrossing the 4.0 m²K\/W mark in a single 90mm layer is what makes this thickness worth specifying. Kingspan's example figures show 90mm between 140mm deep timber studs at 0.25 W\/m²K behind 102.5mm brickwork with a standard membrane, and 0.22 W\/m²K with a foil faced bubble membrane. As insulated sheathing on timber frame it is shown at 0.18 W\/m²K, and on steel frame at 0.19 W\/m²K.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThe low emissivity foil on each face is bonded autohesively to the core during manufacture rather than glued on afterwards, so it stays put through cutting, handling and fixing. That reflective surface improves the thermal resistance of any unventilated cavity next to the board, which is why the achieved figures respond so strongly to the membrane and cavity detail behind them.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in accordance with current Kingspan technical guidance, the project specification and Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 90mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e90mm polyisocyanurate (PIR) insulation board for timber and steel framing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 4.05 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAutohesively bonded low emissivity foil facings on both sides\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuited to deep stud bays and insulating sheathing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good'\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eCavity matters:\u003c\/strong\u003e the reflective facing only pays off against an unventilated cavity, so the adjacent detail affects the result.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eContinuity at junctions:\u003c\/strong\u003e overlap insulation layers where continuity cannot be maintained, and introduce insulation between them where possible.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFloor junctions:\u003c\/strong\u003e keep at least 150mm between the top of the floor insulation and the bottom of the wall insulation to limit cold bridging.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eA separate vapour control layer is required on the warm side when insulating between studs.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWater vapour resistance greater than 50 MNs\/g for the core.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFibre-free core with no food value to vermin and good resistance to mould growth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e90mm TW55 is where a single layer starts doing the work two used to.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655396618574,"sku":"IUK00058","price":183.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-90mm-iuk00058-insulation-1172606203.png?v=1749558492"},{"product_id":"100mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-100mm","title":"100mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e100mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) insulation board for timber and steel framing systems, faced on both sides with low emissivity composite foil. Boards are 2400mm x 1200mm, covering 2.88m², with a declared thermal resistance of 4.50 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThis is the thickness specifiers reach for when a wall has to clear a tighter U-value target without moving to a twin-layer build-up. Kingspan's tables show 100mm between 140mm deep timber studs at 0.24 W\/m²K behind brickwork with a standard membrane and 0.21 W\/m²K with a foil faced bubble membrane. As insulated sheathing it is shown at 0.17 W\/m²K on timber frame and 0.18 W\/m²K on steel frame at 600 centres.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eHandling is the quiet advantage. At 100mm the board is still light enough to lift and cut by hand, and it can be scored and snapped or cut with a fine toothed saw, which keeps a large-format 2.4m sheet workable on site where mineral alternatives at equivalent performance would not be.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in line with the latest Kingspan technical literature, the project specification and Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 100mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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 PIR insulation board for timber and steel frame walls\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 4.50 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2.88m² coverage per 2400mm x 1200mm board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLight to handle and easy to cut for the thickness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow emissivity foil facings on both faces\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured to BS EN 13165: 2012 + A2: 2016\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnaffected by air infiltration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eFixings change the maths:\u003c\/strong\u003e when calculating U-values to BS EN ISO 6946: 2017, the type of mechanical fixing used can alter the insulation thickness required.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDaily protection:\u003c\/strong\u003e cover board edges and joints when work stops for extended periods.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCut clean:\u003c\/strong\u003e accurate trimming gives close butting joints, which is what keeps the layer performing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCertified to BBA Certificate 14\/5133.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured under ISO 37301: 2021 certified compliance management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eA round number that earns it: 100mm TW55 clears serious targets in one layer and still handles like a manageable board.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655397962062,"sku":"BM000920","price":61.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-100mm-iuk00059-insulation-1172606209.png?v=1749558609"},{"product_id":"120mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-120mm","title":"120mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e120mm Kingspan Thermawall® TW55 is a high performance rigid thermoset polyisocyanurate (PIR) insulation board with low emissivity composite foil facings, supplied at 2400mm x 1200mm and covering 2.88m² per board. Declared thermal resistance is 5.45 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eIt is the deepest thickness Kingspan tabulates for between-stud use in 140mm timber frames, shown at 0.22 W\/m²K behind 102.5mm brickwork with a standard membrane and 0.19 W\/m²K with a foil faced bubble membrane. Combined with Kooltherm® K118 fixed inside the studs, the same build-up runs from 0.16 down to 0.12 W\/m²K depending on K118 thickness. As insulated sheathing it is shown at 0.15 W\/m²K on both timber and steel frame.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eAt 120mm the board nearly fills a 140mm stud, which changes the site sequence: measure the bay before cutting, use stop battens to hold the boards in position, and seal around every service penetration before the lining goes on. Small gaps cost proportionally more at this level of performance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in accordance with current Kingspan guidance, the project specification and applicable Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 120mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e120mm polyisocyanurate (PIR) insulation board for timber and steel framing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 5.45 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeepest thickness tabulated by Kingspan for between-stud use in 140mm frames\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides, installable either way round\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResistant to the passage of water vapour\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eSeal the penetrations:\u003c\/strong\u003e sockets, wiring and pipework should be sealed with flexible sealant or a urethane foam and sealant combination.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTwo layers, no void:\u003c\/strong\u003e where insulation sits both between and outside studs, fix so no air space forms between them.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLightning protection:\u003c\/strong\u003e designers should consider the requirements of BS EN 62305-1: 2011.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good'.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured to BS EN 13165: 2012 + A2: 2016.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoards that have been allowed to get wet should not be used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eAt 120mm, TW55 turns a standard 140mm frame into a genuinely high performing wall.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655398846798,"sku":"BM000922","price":75.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-120mm-iuk00060-insulation-1172606211.png?v=1749558616"},{"product_id":"125mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-125mm","title":"125mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e125mm Kingspan Thermawall® TW55 is a rigid thermoset polyisocyanurate (PIR) insulation board faced both sides with a low emissivity composite foil, supplied in 2400mm x 1200mm sheets covering 2.88m². Declared thermal resistance is 5.65 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eSteel frame is where this thickness comes into its own. Kingspan's insulated sheathing tables run to 125mm for steel frames at 600 centres, showing 0.15 W\/m²K behind 102.5mm brickwork and 0.14 W\/m²K behind rendered 100mm medium dense blockwork, for both 100mm and 150mm deep frames. Sheathing the steelwork externally puts a continuous insulation layer across the frame rather than around it, which is the difference between a good number and a compliant one.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eSteel studs conduct heat far better than timber, so the case for an unbroken external layer is stronger still. Fix in accordance with the steel frame manufacturer's recommendations, keep vertical board joints coincident with vertical steelwork members, and butt boards lightly for continuity.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in line with current Kingspan technical literature, the project specification and Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 125mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e125mm rigid PIR insulation board, 2400mm x 1200mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 5.65 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2.88m² coverage per board\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTabulated by Kingspan for steel frame insulated sheathing at 600 centres\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow emissivity foil facings that improve the thermal resistance of an adjacent unventilated cavity\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnaffected by air infiltration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eJoints on members:\u003c\/strong\u003e vertical board joints should land on a vertical steelwork member when sheathing a steel frame.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWall ties:\u003c\/strong\u003e seek recommendations from the steel frame manufacturer on suitable tie specification.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCavity barriers:\u003c\/strong\u003e current guidance on fire stops and cavity barriers should be followed, with specialist advice where needed.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured under ISO 14001: 2015 and ISO 45001: 2018 certified management systems.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReflective facings can be slippery when wet, so contain offcuts to avoid a slip hazard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e125mm TW55 is the sheathing board for steel frame work where the target is tight and the frame conducts.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655401369934,"sku":"IUK00061","price":161.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-125mm-iuk00061-insulation-1172606217.png?v=1749558733"},{"product_id":"140mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-140mm","title":"140mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e140mm Kingspan Thermawall® TW55 is one of the two thickest boards in the range, a fibre-free rigid thermoset polyisocyanurate (PIR) insulation core faced on both sides with a low emissivity composite foil. Boards measure 2400mm x 1200mm and cover 2.88m², with a declared thermal resistance of 6.35 m²K\/W at a thermal conductivity of 0.022 W\/mK.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eThat figure puts a single 140mm layer well past what most standard wall build-ups require, which is why it tends to appear on projects targeting performance beyond the regulatory minimum: low energy new builds, deep timber frame systems and Modern Methods of Construction where the wall is designed around the insulation rather than the other way round.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eDepth brings its own detailing questions. At 140mm the board is a substantial layer to keep continuous, so junctions at sills, jambs, lintels, intermediate floors and the wall to roof interface deserve modelling rather than assumption. Kingspan's technical service offers U-value calculations and condensation risk analysis to support that work.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in accordance with the latest Kingspan guidance, the project specification and applicable Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 140mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e140mm polyisocyanurate (PIR) insulation board for timber and steel framing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 6.35 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuits low energy and Modern Methods of Construction projects\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow emissivity foil facings on both sides\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured to BS EN 13165: 2012 + A2: 2016\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eModel the junctions:\u003c\/strong\u003e linear thermal bridging at openings and floor junctions has a larger relative effect once the plane element performs this well.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eIntermediate floors:\u003c\/strong\u003e a minimum 150mm of insulation within the intermediate or separating floor void adjacent to the rim board helps limit junction losses.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eReveal depth:\u003c\/strong\u003e reveals should be designed to take a minimum thickness of insulation to cut heat loss around openings.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good' at Pembridge and Selby.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWater vapour resistance greater than 100 MNs\/g for the composite foil facing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEuroclass F reaction to fire under System 4 AVCP.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eSpecify 140mm TW55 when the wall is being built to beat the target, not just meet it.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655403237710,"sku":"IUK00062","price":172.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-140mm-iuk00062-insulation-1172606221.png?v=1749558844"},{"product_id":"150mm-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-150mm","title":"150mm Kingspan TW55 ThermaWall PIR Insulation Board  2.4m x 1.2m","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e150mm is the thickest Kingspan Thermawall® TW55 board in the standard range, and the highest single-layer thermal resistance available in it: 6.80 m²K\/W from a thermal conductivity of 0.022 W\/mK. It is a rigid thermoset polyisocyanurate (PIR) core faced both sides with low emissivity composite foil, supplied at 2400mm x 1200mm and covering 2.88m² per board.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eProjects that specify 150mm are usually chasing a fabric-first outcome: minimal heating demand, a highly insulated timber or steel frame envelope, and a wall designed to carry the performance rather than rely on services to compensate. The whole 25 to 150mm range shares one thermal conductivity figure, so moving up the range is a straight trade of build-up depth against thermal resistance, and 150mm sits at the top of that curve.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eHandling stays reasonable for the depth. The core is fibre-free and light for its volume, cuts with a fine toothed saw or by scoring and snapping, and holds its shape once fitted so the specified layer stays intact through the life of the building.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eInstall in accordance with current Kingspan technical literature, the project specification and Building Regulations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits of 150mm Kingspan Thermawall TW55:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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 PIR insulation board, the thickest in the Thermawall® TW55 range\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDeclared thermal resistance of 6.80 m²K\/W\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThermal conductivity of 0.022 W\/mK\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2400mm x 1200mm boards covering 2.88m²\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuits fabric-first, low energy frame wall specifications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFoil faced both sides, installable either way round\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompressive stress of 120 kPa at 10% compression to BS EN 826\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCovered by BBA Certificate 14\/5133\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufactured under ISO 9001: 2015 and ISO 50001: 2018 certified management systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" 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\"\u003e\n\u003cstrong\u003eSheath the junctions:\u003c\/strong\u003e sheathing the frame and its junctions externally with TW55 is Kingspan's stated best approach to minimising cold bridging.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGet it calculated:\u003c\/strong\u003e at this level of performance, a project-specific U-value calculation and condensation risk analysis are worth having.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVapour control:\u003c\/strong\u003e a separate VCL is required on the warm side where TW55 is used between studs without insulated sheathing.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnaffected by air infiltration and resistant to the passage of water vapour.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eResponsibly sourced to BES 6001 'Good'.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEffective for the life of the building when correctly installed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\"\u003eTop of the range, top of the curve: 150mm TW55 is the single-layer answer for low energy frame walls.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655403630926,"sku":"BM000926","price":92.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-tw55-thermawall-pir-insulation-board-2400mm-x-1200mm-150mm-iuk00063-insulation-1172606227.png?v=1749559080"},{"product_id":"kingspan-greenguard-gg700-xps-1250mm-x-600mm-60mm","title":"60mm Kingspan GreenGuard GG700 XPS 1250mm x 600mm - 5.25m2 per pack","description":"\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003eKingspan GreenGuard GG700 - (XPS)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003e Sheet size 1250 x 600mm - Sold in packs only\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003eFormerly known as Kingspan Styrozone , The \u003c\/span\u003eKingspan Greenguard range is an extensive range of high performance rigid extruded polystyrene insulants for roof, wall and floor insulation. Rigid extruded polystyrene insulation offers the following benefits:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eHigh performance rigid extruded polystyrene insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThermal conductivity as low as 0.035 W\/mK (50mm- 80mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eHigh compressive stress\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eAvailable in a number of grades to suit a range of service loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eResistant to ground moisture penetration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eUnaffected by air infiltration. Easy to handle and install .\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eIdeal for new build and refurbishment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eRigid extruded polystyrene insulation (XPS) has the necessary compressive strength to make it the product of choice for specialist applications such as heavy-duty flooring, car park decks and inverted roofing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eEach product achieves the required fire performance for its intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eGreenguard is Manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eTheir closed-cell structure resists both moisture and water vapour ingress – a problem which can be associated with open cell materials such as mineral fibre and which can result in reduced thermal performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eUnaffected by air infiltration – a problem that can be experienced with mineral fibre and which can reduce thermal performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eGreenguard Safe and easy to install – non–fibrous.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eIf installed correctly, can provide reliable long term thermal performance over the lifetime of the building\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eSold in pack sizes only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655537488206,"sku":"IUK00946","price":192.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-greenguard-gg700-xps-1250mm-x-600mm-60mm-iuk00946-xps-insulation-1172607803.png?v=1749586457"},{"product_id":"kingspan-greenguard-gg700-xps-1250mm-x-600mm-80mm","title":"80mm Kingspan GreenGuard GG700 XPS 1250mm x 600mm - 3.75m2 per pack","description":"\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003eKingspan GreenGuard GG700 - (XPS)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003e Sheet size 1250 x 600mm - Sold in packs only\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan\u003eFormerly known as Kingspan Styrozone , The \u003c\/span\u003eKingspan Greenguard range is an extensive range of high performance rigid extruded polystyrene insulants for roof, wall and floor insulation. Rigid extruded polystyrene insulation offers the following benefits:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eHigh performance rigid extruded polystyrene insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThermal conductivity as low as 0.035 W\/mK (50mm- 80mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eHigh compressive stress\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eAvailable in a number of grades to suit a range of service loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eResistant to ground moisture penetration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eUnaffected by air infiltration. Easy to handle and install .\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eIdeal for new build and refurbishment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eRigid extruded polystyrene insulation (XPS) has the necessary compressive strength to make it the product of choice for specialist applications such as heavy-duty flooring, car park decks and inverted roofing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eEach product achieves the required fire performance for its intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eGreenguard is Manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eTheir closed-cell structure resists both moisture and water vapour ingress – a problem which can be associated with open cell materials such as mineral fibre and which can result in reduced thermal performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eUnaffected by air infiltration – a problem that can be experienced with mineral fibre and which can reduce thermal performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eGreenguard Safe and easy to install – non–fibrous.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eIf installed correctly, can provide reliable long term thermal performance over the lifetime of the building\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eSold in pack sizes only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655558951246,"sku":"IUK00947","price":193.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-greenguard-gg700-xps-1250mm-x-600mm-80mm-iuk00947-xps-insulation-1172607797.png?v=1749586438"},{"product_id":"kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-450mm-40mm","title":"40mm Kingspan Thermawall TW50  PIR Cavity Wall Insulation  1200mm x 450mm - 6.48m2 pack","description":"\u003cp\u003e\u003cstrong\u003eKingspan Thermawall TW50\u003c\/strong\u003e is a high performance partial fill cavity wall insulation, offering unparalleled thermal efficiency with a conductivity of just 0.022 W\/mK.\u003c\/p\u003e\n\u003cp\u003eDesigned for ease of use, these high-performance rigid thermoset polyisocyanurate (PIR) insulation boards are not only simple to cut and handle but also come in a variety of thicknesses to suit your specific insulation needs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features and Advantages:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Efficiency:\u003c\/strong\u003e Stands among the top cavity wall insulation options, providing significant energy savings and enhancing building comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Resistance:\u003c\/strong\u003e Maintains a clear cavity, effectively resisting moisture penetration and ensuring long-term durability and protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Thermal Resistance:\u003c\/strong\u003e Low emissivity foil facings on both sides significantly boost the cavity's thermal resistance, contributing to an overall improvement in building energy performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNHBC Compliant:\u003c\/strong\u003e Meets the National House Building Council (NHBC) technical requirements when installed with a 50 mm residual cavity, ensuring compliance with construction standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Installation:\u003c\/strong\u003e Easily tailored to fit around awkward details, making it suitable for a wide range of construction projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIdeal for partial fill cavity wall insulation, Thermawall TW50 is a versatile solution that can be used in both new build projects and refurbishments to achieve exceptional energy efficiency and meet stringent building regulations.\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-performance rigid thermoset polyisocyanurate (PIR) insulation for optimal insulation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Boasts a low thermal conductivity of 0.022 W\/mK, ensuring superior insulation efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Features low emissivity composite foil facings on both sides, autohesively bonded to enhance thermal resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard widths of 450 mm and lengths of 1200 mm, with thicknesses ranging from 40 to 100 mm, accommodating diverse construction requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Holds a Euroclass F rating under System 4 AVCP, adhering to safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Stress:\u003c\/strong\u003e Exhibits a compressive stress exceeding 140 kPa at 10% compression, demonstrating durability and resilience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eChoose Kingspan Thermawall TW50 for your next construction project to benefit from its advanced insulation properties. With TW50, you're not just insulating your building; you're investing in energy efficiency, moisture resistance, and compliance, ensuring a safer, more comfortable environment for occupants.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655559311694,"sku":"IUK00962","price":115.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-450mm-40mm-iuk00962-pir-insulation-1172607791.png?v=1749586322"},{"product_id":"kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-4-50mm","title":"50mm Kingspan Thermawall TW50  PIR Cavity Wall Insulation  1200mm x 450mm - 5.40m2 pack","description":"\u003cp\u003eKingspan Thermawall TW50 is a high performance partial fill cavity wall insulation, offering unparalleled thermal efficiency with a conductivity of just 0.022 W\/mK.\u003c\/p\u003e\n\u003cp\u003eDesigned for ease of use, these high-performance rigid thermoset polyisocyanurate (PIR) insulation boards are not only simple to cut and handle but also come in a variety of thicknesses to suit your specific insulation needs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features and Advantages:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Efficiency:\u003c\/strong\u003e Stands among the top cavity wall insulation options, providing significant energy savings and enhancing building comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Resistance:\u003c\/strong\u003e Maintains a clear cavity, effectively resisting moisture penetration and ensuring long-term durability and protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Thermal Resistance:\u003c\/strong\u003e Low emissivity foil facings on both sides significantly boost the cavity's thermal resistance, contributing to an overall improvement in building energy performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNHBC Compliant:\u003c\/strong\u003e Meets the National House Building Council (NHBC) technical requirements when installed with a 50 mm residual cavity, ensuring compliance with construction standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Installation:\u003c\/strong\u003e Easily tailored to fit around awkward details, making it suitable for a wide range of construction projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIdeal for partial fill cavity wall insulation, Thermawall TW50 is a versatile solution that can be used in both new build projects and refurbishments to achieve exceptional energy efficiency and meet stringent building regulations.\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-performance rigid thermoset polyisocyanurate (PIR) insulation for optimal insulation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Boasts a low thermal conductivity of 0.022 W\/mK, ensuring superior insulation efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Features low emissivity composite foil facings on both sides, autohesively bonded to enhance thermal resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard widths of 450 mm and lengths of 1200 mm, with thicknesses ranging from 40 to 100 mm, accommodating diverse construction requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Holds a Euroclass F rating under System 4 AVCP, adhering to safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Stress:\u003c\/strong\u003e Exhibits a compressive stress exceeding 140 kPa at 10% compression, demonstrating durability and resilience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eChoose Kingspan Thermawall TW50 for your next construction project to benefit from its advanced insulation properties. With TW50, you're not just insulating your building; you're investing in energy efficiency, moisture resistance, and compliance, ensuring a safer, more comfortable environment for occupants.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655560687950,"sku":"IUK00963","price":99.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-4-50mm-iuk00963-pir-insulation-1172607787.png?v=1749586211"},{"product_id":"kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-450mm-60mm","title":"60mm Kingspan Thermawall TW50  PIR Cavity Wall Insulation  1200mm x 450mm - 4.32m2 pack","description":"\u003cp\u003e\u003cstrong\u003eKingspan Thermawall TW50\u003c\/strong\u003e is a high performance partial fill cavity wall insulation, offering unparalleled thermal efficiency with a conductivity of just 0.022 W\/mK.\u003c\/p\u003e\n\u003cp\u003eDesigned for ease of use, these high-performance rigid thermoset polyisocyanurate (PIR) insulation boards are not only simple to cut and handle but also come in a variety of thicknesses to suit your specific insulation needs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features and Advantages:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Efficiency:\u003c\/strong\u003e Stands among the top cavity wall insulation options, providing significant energy savings and enhancing building comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Resistance:\u003c\/strong\u003e Maintains a clear cavity, effectively resisting moisture penetration and ensuring long-term durability and protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Thermal Resistance:\u003c\/strong\u003e Low emissivity foil facings on both sides significantly boost the cavity's thermal resistance, contributing to an overall improvement in building energy performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNHBC Compliant:\u003c\/strong\u003e Meets the National House Building Council (NHBC) technical requirements when installed with a 50 mm residual cavity, ensuring compliance with construction standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Installation:\u003c\/strong\u003e Easily tailored to fit around awkward details, making it suitable for a wide range of construction projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIdeal for partial fill cavity wall insulation, Thermawall TW50 is a versatile solution that can be used in both new build projects and refurbishments to achieve exceptional energy efficiency and meet stringent building regulations.\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-performance rigid thermoset polyisocyanurate (PIR) insulation for optimal insulation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Boasts a low thermal conductivity of 0.022 W\/mK, ensuring superior insulation efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Features low emissivity composite foil facings on both sides, autohesively bonded to enhance thermal resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard widths of 450 mm and lengths of 1200 mm, with thicknesses ranging from 40 to 100 mm, accommodating diverse construction requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Holds a Euroclass F rating under System 4 AVCP, adhering to safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Stress:\u003c\/strong\u003e Exhibits a compressive stress exceeding 140 kPa at 10% compression, demonstrating durability and resilience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eChoose Kingspan Thermawall TW50 for your next construction project to benefit from its advanced insulation properties. With TW50, you're not just insulating your building; you're investing in energy efficiency, moisture resistance, and compliance, ensuring a safer, more comfortable environment for occupants.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":52655561113934,"sku":"BM02319","price":99.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1083\/0670\/files\/kingspan-kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-450mm-60mm-bm02319-pir-insulation-1172607783.png?v=1749586199"},{"product_id":"kingspan-thermawall-tw50-pir-cavity-wall-insulation-1200mm-x-450mm-70mm","title":"70mm Kingspan Thermawall TW50  PIR Cavity Wall Insulation  1200mm x 450mm - 3.24m2 pack","description":"\u003cp\u003e\u003cstrong\u003eKingspan Thermawall TW50\u003c\/strong\u003e is a high performance partial fill cavity wall insulation, offering unparalleled thermal efficiency with a conductivity of just 0.022 W\/mK.\u003c\/p\u003e\n\u003cp\u003eDesigned for ease of use, these high-performance rigid thermoset polyisocyanurate (PIR) insulation boards are not only simple to cut and handle but also come in a variety of thicknesses to suit your specific insulation needs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features and Advantages:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Efficiency:\u003c\/strong\u003e Stands among the top cavity wall insulation options, providing significant energy savings and enhancing building comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Resistance:\u003c\/strong\u003e Maintains a clear cavity, effectively resisting moisture penetration and ensuring long-term durability and protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Thermal Resistance:\u003c\/strong\u003e Low emissivity foil facings on both sides significantly boost the cavity's thermal resistance, contributing to an overall improvement in building energy performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNHBC Compliant:\u003c\/strong\u003e Meets the National House Building Council (NHBC) technical requirements when installed with a 50 mm residual cavity, ensuring compliance with construction standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Installation:\u003c\/strong\u003e Easily tailored to fit around awkward details, making it suitable for a wide range of construction projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIdeal for partial fill cavity wall insulation, Thermawall TW50 is a versatile solution that can be used in both new build projects and refurbishments to achieve exceptional energy efficiency and meet stringent building regulations.\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-performance rigid thermoset polyisocyanurate (PIR) insulation for optimal insulation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Conductivity:\u003c\/strong\u003e Boasts a low thermal conductivity of 0.022 W\/mK, ensuring superior insulation efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacings:\u003c\/strong\u003e Features low emissivity composite foil facings on both sides, autohesively bonded to enhance thermal resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Available in standard widths of 450 mm and lengths of 1200 mm, with thicknesses ranging from 40 to 100 mm, accommodating diverse construction requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Performance:\u003c\/strong\u003e Holds a Euroclass F rating under System 4 AVCP, adhering to safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive Stress:\u003c\/strong\u003e Exhibits a compressive stress exceeding 140 kPa at 10% compression, demonstrating durability and resilience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eChoose Kingspan Thermawall TW50 for your next construction project to benefit from its advanced insulation properties. 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