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Recticel  |  SKU: IREWC100-6

100mm Recticel Eurowall Cavity Wall Insulation Board 1200mm x 450mm - 6 Boards

£53.29 Ex VAT
£63.95 Inc VAT
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Delivery: £50 ex VAT
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Thickness: 100mm
50mm
75mm
100mm

100mm Recticel Eurowall Cavity Wall Insulation Board is a partial fill cavity wall solution with a rigid polyurethane foam core. Belonging to the PIR range of insulation boards, it has a low thermal conductivity of just 0.022 W/mK which means maximum heat retention within the building structure. 

These 100mm Recticel cavity boards have precision-cut straight edges, which means that the boards can butt up tightly against one another, minimising air gaps. They are flanked on either side by a multi-layered kraft and metal foil facing, which acts as a gas diffusion layer across air space. 

100mm Eurowall cavity boards come in 1200mm x 450mm, ideal to fit between brick ties in masonry cavity walls. They can be used in both new builds and extensions and will enhance the thermal performance of any cavity space.

Thickness: 100 mm
Length: 1200 mm
Width: 450 mm
No. Boards: 6
Coverage: 3.24 m²
R-value *: 4.50 m²K/W
Thermal conductivity: 0.022 W/mK
Fire Certification: Euroclass F

 

* The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is.

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    • Size
      1200mm x 450mm
    • Coverage (m²)
      3.24
    • Thickness
      100mm
    • Material
      PIR

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    What is Celotex PIR Insulation Board?

    Celotex is a brand of Polyisocyanurate (PIR) insulation board - a type of rigid foam insulation board backed with a foil layer, ideal for its exceptional thermal performance. It is a strong and light type of foam insulation board that keeps structures warm by trapping air inside. PIR insulation is lightweight, durable, and offers excellent fire resistance and thermal insulating properties, making it a super DIY-friendly solution that can easily be cut to size to fit rafters, joists and stud walls, and used as Cavity Wall Insulation. We also sell a Celotex PIR Insulated Plasterboard which is ideal to save time in stud wall applications. 

    How to Install Celotex Insulation Board

    Due to it’s versatile nature, there are many different uses for PIR Insulation and therefore many different ways to correctly install it. However, generally PIR insulation should be purchased to fit the depth of the cavity or space it is to fill. It can be cut to size to fit the height and width of cavities, joists and rafters using a sharp utility knife or handsaw for thicker boards. It is typically designed to be friction-fit to a space, meaning the boards should fit tightly and stay easily in place with no additional fixtures and fittings.

    For precise installation instructions for your specific use case, it is recommended to consult your builder, architect or building inspector to ensure installation complies with building regulations. 

    Celotex vs Recticel

    Celotex and Recticel are both brands of foil-faced PIR Insulation board available in a range of thicknesses. They are comparable products made from similar materials and methods and from a construction perspective they have the same Fire Rating (Euroclass F Reaction to Fire classification, according to BS EN 13501-1)  and thermal conductivity value of 0.022 W/m.K and so are suitable for largely the same purposes and projects. 

    Celotex U-Value Calculator

    Use the Celotex U-Value Calculator to help calculate the correct u-value of your project to ensure it complies to all of the required building regulations.

    Thickness: 100mm
    50mm
    75mm
    100mm