Foil Backed Insulation Board


- Versatile Celotex GA4000 insulation boards for floors, walls, and roofs.
- Low emissivity foil face enhances thermal performance.
- Environmentally friendly, durable, lightweight, and easy to install with class 1 fire rating.
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Durable Celotex TB4000 Insulation Board
- Exceptional thermal conductivity (0.022W/mK)
- Cost-effective, strong, easy to install, and long-lasting
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Environmental-friendly PIR insulation board with foil facings
- High thermal conductivity (0.022W/mK) eliminates cold spots, reduces energy usage, and lowers bills
- Certified with A+ rating, BBA certificates, and meets Building Regulations; easy to install, strong, and long-lasting
- Regular price
- £35.90£43.08
- Sale price
- £35.90 £43.08
Was £0.00Sold out


- Eurothane® GP is a high performance, lightweight PIR insulation board, easy to cut, handle, and install for various applications like floors, pitched roofs, internal walls, ceilings, and lofts.
- It is highly favored by contractors and installers for its excellent thermal performance with a λ value of 0.022 W/mK.
- The product ensures a quick and easy installation process, making it an ideal insulation solution.
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Maximize Energy Efficiency: Thermal conductivity of 0.022 W/mK for reduced heat loss and lower bills.
- Compatibility with Underfloor Heating: Seamless integration for comfort and luxury without compromise.
- Cost Savings & Versatility: Lightweight, easy installation, and suitable for various floor types.
- Regular price
- £106.95£128.34
- Sale price
- £106.95 £128.34
Was £0.00Sold out

- Lightweight PIR insulation board
- High thermal performance & strength
- Eco-friendly, water-resistant, easy to cut
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Effortless insulation with Kingspan Thermapitch TP10.
- High density increases habitable space by up to 15%.
- Trusted foil-facing technology prevents moisture buildup.
- Regular price
- £106.95£128.34
- Sale price
- £106.95 £128.34
Was £0.00Sold out


- All-in-one Eco-versal Insulation Board for thermal conductivity (0.022 W/mK)
- Rigid PIR core with aluminum composite foil facing, perfect for roofs, walls, and floors
- Lightweight, easy to cut, and install compared to some other commonly used insulants; offers warmth and durability
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Premium insulation board: Kingspan Thermaroof TR26
- Fibre-free phenolic core, ISO certified
- Size: 2.4 x 1.2m, 0.019 W/mK conductivity
- Regular price
- £245.20£294.24
- Sale price
- £245.20 £294.24
Was £0.00Sold out


- High-performance rigid polyisocyanurate insulation.
- Compatible with PVC single-ply waterproofing.
- Resistant to water vapor, solvents, fungi, and rodents.
- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
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- Efficient insulation: Thermal conductivity of 0.022 W/mK for top-notch performance.
- Robust stability: Exceeds 125 kPa at 10% compression for lasting durability.
- Moisture prevention: High water vapor resistance (100 MNs/g) for a clear cavity.
- Regular price
- £45.90£55.08
- Sale price
- £45.90 £55.08
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- Premium rigid phenolic core
- Low emissivity foil facing
- Ultra-low thermal conductivity of 0.019 W/mK
- Regular price
- £98.45£118.14
- Sale price
- £98.45 £118.14
Was £0.00Sold out


- Premium insulation board: Kingspan Kooltherm K112 Framing Board
- Exceptional thermal conductivity: 0.019 W/m.K
- Size: 2.4m x 1.2m, ISO-certified, eco-friendly, durable
- Regular price
- £314.95£377.94
- Sale price
- £314.95 £377.94
Was £0.00Sold out


- Thermaclass Cavity Wall 21: High thermal performance PIR insulation (0.021 W/m.K).
- Engineered tongue and groove joint for seamless installation.
- Lightweight, BBA approved with low emissivity foil facing for weather protection.
- Regular price
- £1,165.00£1,398.00
- Sale price
- £1,165.00 £1,398.00
Was £0.00Sold out


- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
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- Eurothane® Eurodeck is a thermal insulation board designed for use in warm flat roofs under mechanically fixed single-ply membrane waterproofing systems.
- It offers high compressive strength, excellent dimensional stability, and compatibility with numerous waterproofing systems.
- The board is faced on both sides with a multi-layer coated aluminum foil, ensuring optimum performance in both new build and refurbishment projects.
- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
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- Regular price
- £51.95£62.34
- Sale price
- £51.95 £62.34
Was £0.00Sold out


- Eurothane® GP is a high-performance, lightweight PIR insulation board that is easy to cut, handle, and install, suitable for floors, pitched roofs, internal walls, ceilings, and lofts.
- It is a popular choice among contractors and installers due to its versatility and ease of use in multiple applications.
- The product offers excellent thermal performance with a thermal conductivity of λ = 0.022 W/mK, ensuring quick and efficient installation.
- Regular price
- £28.99£34.79
- Sale price
- £28.99 £34.79
Was £0.00Sold out


- Eurothane® GP is a high-performance, lightweight PIR insulation board, easy to cut, handle, and install.
- It is ideal for various applications such as floors, pitched roofs, internal walls, ceilings, and lofts, with good thermal performance (λ = 0.022 W/mK).
- Preferred by contractors and installers for its quick and easy installation process.
- Regular price
- £23.65£28.38
- Sale price
- £23.65 £28.38
Was £0.00Sold out


- Eurothane® GP is a high-performance, lightweight PIR insulation board, easy to cut, handle, and install.
- It is suitable for multiple applications including floors, pitched roofs, internal walls, ceilings, and lofts with a good thermal performance of λ = 0.022 W/mK.
- Preferred by contractors and installers, it offers a quick and easy installation process.
- Regular price
- £17.15£20.58
- Sale price
- £17.15 £20.58
Was £0.00Sold out


- Eurothane® GP is a high-performance, lightweight PIR insulation board, easy to cut, handle, and install.
- It's suitable for various applications like floors, pitched roofs, internal walls, ceilings, and lofts with good thermal performance (λ = 0.022 W/mK).
- Preferred by contractors and installers for its quick and easy installation process.
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out
Indispensable to an array of construction projects, Foil Backed Insulation Boards serve to enhance thermal efficiency, ensuring that structures are adeptly shielded from the often-harsh embrace of external temperatures. In the diverse assortment available at Insulation4Less, you’ll discover an array of options, each meticulously designed to cater to various application needs within the domains of roofing, flooring, and wall installations, and more.
Pioneering Performance with PIR Insulation Boards
Celotex and Recticel: Renowned for their steadfast performance and resilient thermal capabilities, PIR boards from brands like Celotex and Recticel ensure multi-faceted utility across numerous structural elements, including walls, floors, and roofs. Their varied thickness, as observed in offerings like the Celotex GA4000 and Recticel Eurothane GP, provides adaptable solutions, thereby addressing varied thermal requirements and building specifications.
Luxuriating in the Robustness of Phenolic Foam Insulation
Kingspan: A name often synonymous with formidable quality in insulation, they presents a range that predominantly utilises phenolic foam, notorious for its low thermal conductivity and fire-resistant properties. Products like Kingspan Thermawall TW50 and Kingspan Kooltherm K112 offer solutions tailored for distinct applications including cavity wall insulation and framing board insulation, respectively, each ensuring a robust defence against thermal bridging and heat loss.
Exemplifying Versatility with Multi-Purpose Insulation Boards
EcoTherm: EcoTherm Eco-versal Insulation Boards pronounce themselves as a quintessential choice for a wide range of applications, furnishing both builders and DIY enthusiasts with a product that vows steadfast thermal performance across varied building elements, owing to its universality in application.
Steadfast & Resilient Insulation with Specific Purposed Boards
Mannok and Unilin: With Mannok offering a generalised utility, and Unilin putting forth specialised PIR boards, both brands curate products that extend resilient and steadfast thermal performance. Ensuring that the structures are not only thermally well-guarded but also, that they adhere to regulatory compliance.
Guiding Your Choice in Foil Backed Insulation Boards
Deliberating Thickness and R-Values
When selecting the appropriate insulation board, consider the thickness and the resultant R-value, ensuring that your choice adheres to the building’s thermal requirements and compliance standards.
Purpose-Oriented Selection
From roofs (like with Kingspan Thermapitch TP10) to floors (exemplified by Kingspan Thermafloor TF70) and walls (such as Kingspan Thermawall TW50), discern the specific utility of each board, ensuring it aligns with your project’s demands.