At least 100mm of rigid board insulation must be positioned on top of the vapour control layer the vapour control layer stops any moisture within the building contaminating the insulation.
Installing a warm flat roof.
Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.
Types of flat roof construction warm and cold flat roofs.
The 8 step process for diy installation step 1.
Warm flat roof vapour barrier insulation explained duration.
In a warm roof the insulation is laid on top of a moisture or vapour barrier directly onto the flat roof deck which means that the insulation is continuous.
One of the main benefits you will receive from installing a warm flat roof is condensation will not become an issue because of the positioning of the insulation.
Flat roof construction can come in the form of a warm roof or cold roof depending on the requirement of the owner and architect as they relate to the building regulations regarding heat loss and insulation.
Warm roof construction is the easiest method and is often cheaper.
Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat.
Cure it grp roofing system 75 410 views.
Roofing timber steel joists plywood exterior covering such as epdm or modified bitumen water based adhesive foam with fibreglass backing insulation warm flat roofing.