Celotex Warm Roof Construction Details

Insulation uk polyisocyanurate pir foam boards are lightweight.

Celotex warm roof construction details.

Fixed over the rafters of a pitched roof they can help to achieve the required u value in just a single layer. We would like to show you a description here but the site won t allow us. Lady lane industrial estate hadleigh ipswich suffolk ip7 6ba. Francis wood july 23 2015 at 12 41 pm.

As mentioned before celotex gs5000 has an integral vapour control layer and blocks warm moist air rising into the pitched roof structure. 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. For all updates and celotex announcements since june 2017 please see the links below. A warm roof design with the insulation laid over the structural timbers remains the preferred option to a cold roof design.

The building detail is for illustrative purposes only. Our warm roof construction no ventilation consists of 100mm joists 18mm plywood breathable membrane 50mm celotex insulation battens and slate roofing. Tel 44 0 1473 822093. A warm roof does not need cross ventilation and lends itself to better detailing at junctions with other elements to address linear thermal bridging.

Saint gobain construction products uk limited trading as celotex registered in england. 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. 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. In the opinion of celotex a hybrid solution presents an unacceptable risk of harmful condensation and should be avoided by building designers.

Celotex offer pir thermal insulation boards in various thicknesses for new build and refurbishment applications for both the commercial and domestic sectors.