Celotex CW4085 is designed to be used in cavity walls where a lightweight and versatile insulation solution is required. With foil facings that are deisgned to significantly reduce lost of heat to improve the thermal persormance of your home, commercial o
Cavity wall insualtion designed to reduce heat loss. Thermal conductivity of 0.022 W/mK. Used in partial fill cavity wall insulation projects, and the product is a good solution for new build projects or entensions to existing properties where a masonry w