100mm Celotex GA4100 insulation boards are a popular choice for thermal insulation. They have a high thermal resistance, which means they can effectively reduce heat transfer. These boards are commonly used in walls, roofs, and floors to improve energy efficiency and reduce heating and cooling costs. They are also easy to install and can provide excellent insulation performance. From the Celotex GA4000 range, GA4100 100mm 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 General application range of Celotex products are split in to three size categories
TB3000 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.

Specification - Celotex GA4100

Length: 2.4m.
Width: 1.2m.
Coverage: 2.88m2.
Thickness: 100mm.
Weight per m2: 4.15kg
Weight per board: 11.95
rValue: 4.50m2K/W.
Thermal conductivity: 0.022 W/mk - BS EN 12667.
Compressive strength: 140kPa - BS EN 826.
Water vapour resistance: >150MNs/g - BS EN 12086: Method B.
Spread of flame: Class 1 - BS 476-7.Lambda Value = 0.022

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. 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.