Celotex GA4090 90mm PIR Insulation can be used for various floor, wall and roof applications. 90mm Celotex Insulation boards contain an eco-friendly blowing agent that has a low potential to cause global warming. They have zero ozone destruction potential (ODP). 90mm Celotex PIR boards have a low-emissivity foil face that increases thermal performance in sealed cavity air space, improving the U value. 90mm Celotex PIR Insulation boards can be transported easily because they are lightweight. They can also be easily fitted. Celotex GA4090 has been certified by the BBA to be suitable for roof, wall, and floor applications provided that it is used and maintained according to the certificate. Celotex GA4090 can be used for your BREEAM assessments as a BRE Green Guide A rated product.