Celotex Insulation - Saint Gobain

Celotex, a Saint Gobain brand, was founded in the early 1920s as a fibreboard insulation enterprise and helped popularise the use of fibreboard and plasterboard as viable construction materials, which was an uncommon practice at the time. Throughout the twentieth century, the corporation extended its product line to include a wide range of building products such as roofing shingles and siding. As a result, asbestos was added to numerous Celotex items, which are made of a heat-resistant substance, in order to make the products fireproof.

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Celotex Insulation

Celotex Insulation - a Saint Gobain trademark, with this article featuring further information surrounding the brand, and the products they supply. 

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Frequently Asked Questions

How thick should Celotex be?
Celotex is available in thicknesses ranging from 25mm to 65mm (insulation alone) and may be used in roof and interior wall lining applications. Celotex XR4000 is a polyisocyanurate (PIR) insulation board with outstanding thermal performance and a low emissivity foil face that is simple to install.
Is Celotex good for roof insulation?
Celotex provides a range of high-performance insulation solutions for pitched roof applications.
Can you use Celotex between ceiling joists?
Celotex is much easier to cut and clean up than rockwool. By filling in between the joists, it allows you to board over them and use the area for storage. If you opt to keep the existing materials, you may also install Celotex on top of the joists
Does Celotex need an expansion gap?
The chipboard should be bonded with sufficient adhesive and provide a space of roughly 10 to 12mm to allow for expansion.
What is the R value of 75mm Celotex?
Thickness: 75mm. rValue: 3.40m2K/W. Weight: 2.34kg/m2.