Celotex TB4030 PIR Insulation 30mm can be used in a variety floor, wall and roof applications and to reduce thermal-bridging. 30mm Celotex Insulation boards comprises a combination of an eco-friendly blowing agents giving it a low potential for global warming. They have also been shown to have zero ozone destruction potential (ODP). These 30mm Celotex PIR boards feature a low-emissivity foil front that improves thermal performance in sealed cavity air spaces, enhancing the U value. 30mm Celotex PIR Insulation boards are lightweight and rigid so they can be easily transported, used and fitted. Celotex TB4030 has been certified by the BBA as suitable for roof, wall and floor applications if it's installed, used and maintained in accordance with the certificate. Celotex TB4030 is equipped with a BRE Green Guide rating A, which can be used in your BREEAM assessments to show environmental performance.