How To Build A Warm Deck Flat Roof

In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately.

How to build a warm deck flat roof. Warm deck flat roofs can be constructed on most modern construction material types such as concrete timber and timber based sheets. Pitch roof u value 0 16 w m2k 2 warm deck pitched roof the insulation is placed over the rafters and then a felt is placed on top. This will give additional stability to the roof structure. Due to the insulation being over the top of the roof the timber structure beneath is warm which is why the term warm roof is formed.

To use epdm for a warm deck flat roof construction solid closed cell roof insulation such as kingspan or celotex should be placed on top of the roof deck rather than in between the rafters. 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. This is as opposed to a cold roof in which the insulation is below or within the roof. Constructing a flat roof using epdm.

For additional stability you can also use steel joists that are built into one or both of the walls. In terms of the thermal design of a flat roof what are the options and the best practices of flat roof build ups. Warm roof designing buildings wiki share your construction industry knowledge. On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.

A warm flat roof is formed by placing a layer of insulation over the top of the roof structure. Steve from london flat roofingexplains how warm flat roof construction works in this excellent short video. Types of flat roof construction warm and cold flat roofs. Roofing timber steel joists plywood exterior covering such as epdm or modified bitumen water based adhesive foam with fibreglass backing insulation warm flat roofing.

The battening and tiling is then fixed down over. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.