What is a Celotex roof?
What is a Celotex roof?
Celotex insulation boards offer a thinner, single layer solution and create a highly efficient warm roof construction.
What is Celotex used for?
Celotex is a multi-purpose insulation board that can be used around the home for insulating roofs, walls and floors and they come in a range of sizes and thicknesses.
What material is Celotex?
polyisocyanurate
What is Celotex made from? Celotex boards are manufactured from polyisocyanurate (PIR), which is a thermoset plastic in the form of foam. Celotex boards are often PIR boards with foil facings to improve insulation levels.
How do you hang Celotex?
Step one: Make sure studs and rails are flush – no projections. Services must be correctly installed. Step two: Install Celotex insulation tightly between studs, pushing it up to plywood sheathing. For improved thermal performance, place the unprinted foil surface face against the air cavity within the stud work.
Is Celotex good for roof insulation?
Celotex is often used for conservatory roof insulation, where it’s used to provide high value thermal efficiency and is certified by the British Board of Agrément (BBA). The result is an excellent standard of Celotex conservatory roof insulation for your home.
Is Celotex waterproof?
Is Celotex Waterproof? Yes, Celotex insulation is designed to effectively fight excess moisture in the air. This is thanks to the closed cell structure of their products, which makes them hydrophobic; meaning they do not absorb water.
Can you screw into Celotex?
Use two or three screws per board, then screw the plasterboards through both layers, you are only holding the celotec there until you fix it permanently with the plasterboard, the direction of the celotex wont matter just run them end to end, then mark the rafters for the plasterboard.
Is Celotex a fire risk?
Celotex PIR is tested to BS EN 13501-1. It achieves a classification of E. In layman’s terms, this means it is combustible and will contribute to the overall fire load.
Should you insulate between roof rafters?
The general advice we give is that you should always insulate between and above the rafters (warm roof) or between and under the rafters (cold roof).