The Kingspan Thermaroof TR27 PIR Flat Roof Insulation Board is designed for superior thermal performance in flat roof applications. Each board measures 1200 x 1200 x 130mm, and this pack includes three high-quality sheets, suitable for use with a variety of waterproofing systems. Manufactured from rigid PIR (polyisocyanurate) insulation, these boards offer excellent compressive strength and durability, making them ideal for new builds or refurbishment projects. The closed-cell structure minimises water absorption and ensures long-term performance, while the lightweight design allows for easy handling and installation. Kingspan TR27 insulation boards help improve energy efficiency by reducing heat loss through flat roof constructions.