140mm x 2400mm x 1200mm Celotex PIR Insulation Board XR4000

Celotex XR4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 110mm to 200mm, it can be considered for roof, wall and floor applications. 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. Celotex boards are light and rigid assisting with ease of transportation, handling and fitting. Celotex XR4000 has been assessed by the BBA as fit for use in defined roof, wall and floor 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