
85mm x 1200mm x 450mm Celotex PIR Cavity Wall Insulation Board CW4000
by Celotex
£17.29
GTIN05060153764520
EAN5060153764520
MPN137491
Prices updated 30 Mar 2026
Compare 1 Retailer
Travis Perkins
BEST PRICEOut of stock£20.00 deliveryStandard
Amazon
Check live price on Amazon.co.uk
eBay
Check availability and price on eBay.co.uk
Product Description
Celotex CW4000 PIR cavity wall insulation board measures 1.2m in length, 45cm in width, and has a thickness of 8.5cm, providing a total coverage area of 0.54 m². Celotex CW4000 is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low-emissivity foil facing. Excellent thermal performance with a thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value. Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value. The boards are light and rigid assisting with ease of transportation, handling and fitting. They are sized to fit standard wall tie spacing for ease of installation. Has been assessed by the BBA as fit for use in defined partial fill cavity wall applications if installed, used and maintained as set out in the certificate. Please read the certification at insulation-UK.com/BBA for full details and restrictions. To ensure we are providing you with the most up to date information available please visit our Manufacturer Technical Information page
More products from Travis Perkins
Browse their full range on Yorkshire.com
Related Products
Browse all Insulation
Ronseal Smooth Finish Quick Drying Multipurpose Filler 600g
£3.41

Evo-stik Instant Grab Wall Tile Adhesive 5 Litre
£10.33

Ronseal Multipurpose Wood Filler 250g
£5.32

Evo-stik Gripfill Heavy-Duty Adhesive 350ml
£2.84
Everbuild Sika General Purpose Silicone Grey 280ml
£4.54

Everbuild Sika 5min Polyurethane Wood Adhesive Gel 310ml
£11.56
From£17.29Travis Perkins
Buy Now