Insulation Board

Choosing the right insulation board depends on your application, the thermal performance required and the space available within your build-up. At Insulation UK, we stock insulation boards from all the leading manufacturers, with trade prices and fast UK-wide delivery on every order.

PIR Insulation Boards

PIR boards are one of the most widely used insulation types, offering excellent thermal performance (typically around 0.022 W/mK). They are suitable for walls, roofs and floors, particularly in limited space areas.

Phenolic Insulation Boards

Phenolic boards deliver even higher thermal performance (around 0.019 W/mK), making them ideal for projects requiring the lowest possible U-values with minimal thickness.

EPS Insulation Boards

EPS boards are a cost-effective option with slightly lower thermal performance (0.033–0.038 W/mK). They are suited to large-scale applications where budget is a priority.

XPS Insulation Boards

XPS boards provide excellent moisture resistance and compressive strength, making them ideal for floors, basements, and high-load environments.

Insulated Plasterboard (Thermal Laminate)

Insulated plasterboard combines a rigid insulation layer with a plasterboard facing, allowing insulation and internal lining to be completed in one step. This reduces installation time and overall build-up thickness.

Benefits of Insulation Boards

• Improves thermal performance and reduces heat loss
• Helps lower energy bills
• Provides long-term durability 
• Can improve acoustic insulation
• Suitable for a wide range of applications
• Available in multiple thicknesses to meet building regulations

Shop Insulation Board by Application 

Roof Insulation Board 

PIR and phenolic boards are suitable for both flat and pitched roof constructions. Popular choices include Recticel Eurothane Eurodeck for flat roofs, and Celotex GA4000 and Kingspan Kooltherm K107 for pitched roof applications. 

Wall Insulation Board 

Insulation boards are suitable for cavity, internal, and external wall applications. Popular choices include Recticel Eurowall and Eurowall Plus for cavity walls, and Celotex PL4000 and Kingspan Kooltherm K118 insulated plasterboard for internal dry-lining. 

Floor Insulation Board 

PIR boards including Celotex GA4000, XR4000, and Kingspan TF70 are the most popular choice for solid concrete and suspended timber floors. Jablite Jabfloor EPS offers a cost-effective alternative for ground floors, while Kingspan GreenGuard and Ravatherm XPS are ideal for basements and moisture-prone applications. 

Loft Insulation Board 

Rigid PIR boards including Celotex GA4000, Recticel Eurothane GP, and Ecotherm Eco-Versal are ideal for loft and attic conversions installed between and below rafters. Where headroom is at a premium, Kingspan Kooltherm K107 phenolic boards deliver superior U-values in a thinner profile.  

Why Choose Insulation UK for Insulation Boards? 

A Comprehensive Range of insulation boards in stock across PIR, phenolic, EPS, XPS, as well as insulated plasterboard from Tekwarm, British Gypsum Thermaline,  and the Celotex PL4000 range in a wide range of thicknesses and sizes to suit every project. 

Half Insulation boards in a range of sizes and thickness available for express and next day shipping for those last minute orders. 

All the Leading Brands Celotex, Kingspan, Tekwarm, British Gypsum, Recticel,  Ecotherm, Unilin Xtratherm, and Jablite, all available at trade prices 

Competitive Trade Pricing Including some of the cheapest insulation board prices available online, with no minimum order value 

Fast UK-Wide Delivery Reliable delivery across the UK with free shipping on orders over £500 (ex VAT) 

Wide Range of Thicknesses A comprehensive selection of thicknesses available to achieve U-value targets for new build and refurbishment projects. 

Help and Advice with over 50 years in the industry. For our customers and yours, our priority is to provide guidance, a sense of security and peace of mind, ensuring your projects run as expected from idea to finished job.