The Celotex GA4000 General Purpose PIR Insulation Board, measuring 2.4m x 1.2m, is a top-quality solution for thermal insulation needs in a variety of applications. This all-around board is manufactured by Celotex, a renowned name in the insulation industry. The GA4000 series is known for its high-performing and versatile insulation properties that make it suitable for floor, wall, and roof systems. Made from rigid polyisocyanurate (PIR), it offers maximum thermal efficiency with minimal thickness.