The Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200 x 50.5mm is a premium-grade insulation product designed for high-efficiency thermal insulation. Crafted from rigid polyisocyanurate (PIR), this board offers superior thermal performance, making it an excellent choice for wall and roof applications. It features a double-deck structure, ensuring maximum insulating properties and durability. The boards dimensions make it suitable for large-scale projects, while its lightweight design ensures easy installation.