120mm Celotex XR4120 Insulation Board 2400x1200mm is a High Performance Rigid PIR Insulation Board. From the Celotex XR4000 range, Celotex XR4120 120mm General Application Board is suitable for a variety of applications, including roof, wall and floor insulation. This multi-purpose PIR Insulation board is one of our biggest selling products due to is diversity in application and it also achieves an A+ rating when compared to the BRE Green Guide. The Celotex XR range can save time and money by potentially only having to install one layer of insulation.

The General application range of Celotex products are split in to three size categories
TB4000 12mm - 40mm
GA4000 50mm - 100mm
XR4000 120mm - 200mm

These are all essentially the same product but with varying thicknesses of Insulation Board.
Celotex Insulation boards are made from a expanded Polyisocyanurate (PIR) insulation foam with a foil facing to both sides.

Lambda Value = 0.022
Thickness = 120mm
Please note : Due to recent national shortages of PIR insulation, We now offer Celotex, Ecotherm, Recticel and Iko to help to offer a speedy delivery. You may be offered an alternative brand due to local stock availability.

PIR Insulation Boards

The Celotex range of PIR insulation boards provides thermal insulation solutions that fully meet the requirements of current legislation including Part L, BREEAM and the Code for Sustainable Homes, as well as the demands of building professionals, specifiers and users. These high performance insulation solutions are represented in our depth of product offering.