Celotex CW4000 is a high performance insulation board featuring low emissivity foil facings, and offers enhanced thermal performance as cavity wall insulation when compared to typical PIR products. Celotex CW4000’s enhanced features deliver thinner solutions that meet target U-values as required by Building Regulations including Part L and BREEAM.
Convenient sized boards for installation between cavity wall ties
Low emissivity foil facings on both sides
Thermal conductivity of 0.022W/mK
Zero ozone depletion potential and low global warming potential
Polyisocyanurate rigid foam core
Effective thermal performance
Green Guide Rating A+
BBA approved