The 90mm Celotex GA4090 is a high-performance, multipurpose PIR insulation board designed for floors, walls and roofs. Measuring 2.4m x 1.2m, this board is renowned for its exceptional thermal performance, providing optimum energy efficiency in buildings. The GA4090 is made from rigid polyisocyanurate (PIR) using a blowing agent with zero ozone depletion potential (zero ODP) and low global warming potential (GWP). This makes it not only an effective solution for your insulation needs, but also an environmentally responsible choice.