Warm Deck Flat Roof Design

On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.

Warm deck flat roof design.

Where a cold flat roof does incorporate insulation this is in the form of mineral wool. Traditionally flat roofs simply consisted of a structural timber deck with a waterproof covering directly applied to the top of the deck. There are three recognised designs of flat roof construction. The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible.

It is most important to note the vapour barrier must be a continuous vapour barrier with no puncture points. Warm cold and inverted. Warm flat roof designs. In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately above the underdrawn ceiling depending on the type of roof design and construction.

Flat roof design guide. Warm roof designing buildings wiki share your construction industry knowledge. This design dates back many years and flat roof insulation was somewhat of an afterthought with this type of roof. 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. This results in the structural deck and its supports being at a temperature closer to that of the building s interior. The recognised flat roof build ups for best design practices are.