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Celotex warm roof construction details.
Insulation uk polyisocyanurate pir foam boards are lightweight.
We would like to show you a description here but the site won t allow us.
Width 1200mm length 2400mm.
Hopefully this video will help explain the difference between warm flat roof construction and cold flat roof construction.
Product name thickness range sizes lambda bba.
If the roof has insulation over the joists warm roof construction and you choose to insulate the underside of the joists steps would need to be taken to make sure that the required ventilation.
Width 1200mm length 2400mm.
A warm roof does not need cross ventilation and lends itself to better detailing at junctions with other elements to address linear thermal bridging.
Celotex offer pir thermal insulation boards in various thicknesses for new build and refurbishment applications for both the commercial and domestic sectors.
In the opinion of celotex a hybrid solution presents an unacceptable risk of harmful condensation and should be avoided by building designers.
A fully warm roof construction is recommended and where this is not practical a cold roof can also be considered.
These boards offer a quick and easy way to achieve effective thermally insulated flat roof decks for building structures such as small extensions or garage roofs where there will only be occasional traffic.
The roof will need to be checked to see if there is any insulation either within the joists or on top of the joists as a warm roof construction.
Tel 44 0 1473 822093.
Celotex td4000 pir insulation for light traffic flat roof applications.
Another key advantage of specifying a pitched roof is the ability to provide a very high level of thermal performance in these roof types whether you re looking to insulate at joist ceiling level for a cold pitched roof or at rafter level if a living area within a warm roof construction is desired.
This video shows detailed drawing.