Warm Deck Flat Roof Design

There are three recognised designs of flat roof construction.

Warm deck flat roof design.

Traditionally flat roofs simply consisted of a structural timber deck with a waterproof covering directly applied to the top of the deck. Where a cold flat roof does incorporate insulation this is in the form of mineral wool. This design dates back many years and flat roof insulation was somewhat of an afterthought with this type of roof. The recognised flat roof build ups for best design practices are.

Warm cold and inverted. It is most important to note the vapour barrier must be a continuous vapour barrier with no puncture points. This is as opposed to a cold roof in which the insulation is below or within the roof. In this article we discuss the pros and cons of both roof designs.

The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. Flat roof design guide. Warm roof designing buildings wiki share your construction industry knowledge. This results in the structural deck and its supports being at a temperature closer to that of the building s interior.

This is why warm flat roof designs are commonly regarded as the preferred and more effective design. So called because the insulating layer is located above the roof rafters and between the structural supports a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the. On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.