The 120mm Celotex XR4120 PIR Insulation Board 2400mm x 1200mm is a high-performance product renowned for its superior thermal efficiency. With excellent dimensional stability and compressive strength, this insulation board is known for its durability and longevity. Its made from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP). The insulation boards size makes it ideal for large-scale insulation projects, and its easy to install, reducing labour time and costs.