The Celotex 165mm XR4165 is a high-performance insulation board designed for solid walls, floors, and roofs. With dimensions of 2.4m x 1.2m, it provides excellent thermal performance due to its unique PIR formula. This pallet of 12 boards is ideal for large-scale construction or renovation projects, promising easy installation and long-lasting durability. Its low emissivity foil facings significantly enhance thermal efficiency, making it an eco-friendly choice for any setting.