Important Information: For all updates and Celotex announcements since June 2017, please see the links below...  See more

Declared lambda values - Read more >

5000 Class 0 testing - Read more >

Rainscreen cladding & RS5000 - Read more >


Celotex PIR insulation boards provide ideal solutions for all insulation applications: floor, wall, pitched and flat roofing and conversions.

U-value Calculator
Start your U-value calculation >
Use the calculator

Celotex products protect countless buildings the length and breadth of the UK. Our solutions and product development continue to make a difference. Suitable in mulitple appications across floors, walls, pitched roofing and flat roofing, there is a solution for you.