Warm Roof Cold Roof Hybrid

In a warm roof construction the principal thermal insulation layer is located above the structural decking resulting in the structural deck and support structure being at a temperature close to that of the interior of the building.

Warm roof cold roof hybrid.

But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution. This solid tiled and insulated roof is designed to keep you warm in winter and cool in summer for all year round comfort. Warm roof insulation ensures the entire roof structure is insulated meaning a warm deck roof is more energy efficient than a cold roof. Imagine a flat roof constructed on timber deck and joists.

Warm roof construction requires that the entire roof construction is encapsulated within the insulation envelope of the building to be kept warm. Flat roofing solutions the xtratherm range of high performance insulation boards provides the ideal technically advanced solution for flat roof projects. A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface. Xtratherm manufactures an extensive range of high performance pir flat roof insulation boards that include tapered insulation providing comprehensive technically advanced solutions for all.

There are three recognised designs of flat roof construction. Unfortunately you appear to be describing a hybrid roof which is a form of construction that increases the risk of condensation. The object being to design out the possibility of warm moisture laden air coming into contact with a cold surface and condensing. Warm cold and inverted.

Basically the term cold roof refers to a traditional roof or vented roof while hot roof refers to a roof that is not ventilated and which has foam insulation attached directly to the roof sheathing. Combining elements of both cold and warm flat roof design hybrid roofs appear to offer the best of both worlds when it comes to maximising thermal performance while limiting constructional depth. If the basic warm roof construction is followed before extra insulation is installed problems can arise. The breakdown warm roof vs cold roof.