Celotex 120mm XR4120 2.4m x 1.2m clerk_003 Outstanding Thermal Performance: K value

Outstanding Thermal Performance: K value of 0

Compatible with timber joists

ensuring durability and longevity in shielding your timber frame

designed to enhance thermal efficiency in walls and roofs

Celotex 120mm XR4120 2.4m x 1.2m clerk_003 Outstanding Thermal Performance: K valueCelotex XR4120 is a 120mm insulation board with a thermal conductivity of 0. 022W mK, designed for multi application use in walls, floors, roofs, and cavities, ensuring optimal energy saving and reduced heating bills. The insulation board meets Building Regulations by delivering the necessary U values with minimal thickness and features tapered edges for quick installation and adaptability. Made from rigid polyisocyanurate (PIR) with foil facings, its