Warm Deck Flat Roof Design

A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.

Warm deck flat roof design.

This results in the structural deck and its supports being at a temperature closer to that of the building s interior. It is most important to note the vapour barrier must be a continuous vapour barrier with no puncture points. Inverted warm deck roof. In the case of a flat roof insulation is usually in the form of either a rigid board above the deck or a fibrous quilt immediately above the ceiling depending on the type of roof construction.

In this article we discuss the pros and cons of both roof designs. Warm flat roof designs. Warm cold and inverted. There are two forms of warm deck roof.

This is why warm flat roof designs are commonly regarded as the preferred and more effective design. There are three recognised designs of flat roof construction. Where a cold flat roof does incorporate insulation this is in the form of mineral wool. A full condensation risk.

On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure. Types of warm deck roof. The recognised flat roof build ups for best design practices are. Traditionally flat roofs simply consisted of a structural timber deck with a waterproof covering directly applied to the top of the deck.

A common design problem. The sandwich warm deck roof is the most common type of flat roof. The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. This is a similar construction to the warm roof as insulating above the deck ensures that the structure of the building is warm.

Warm roof designing buildings wiki share your construction industry knowledge. This is as opposed to a cold roof in which the insulation is below or within the roof. The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck. 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.