Hybrid Flat Roof Construction

Hybrid roofscombining 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.

Hybrid flat roof construction.

You may ask why have a flat roof on a building that s a great question. In each case the name refers to the position of the insulation in relation to the roof deck. A warm flat roof is. Traditionally flat roof constructions fall in to two camps.

These hybrid systems are specified for certain situations and are. Imagine a flat roof constructed on timber deck and joists. In addition there s a third type the warm flat roof with airflow that s essentially a hybrid version of the warm flat roof and the cold flat roof. Mod bit bur hybrid systems.

However this is a general guide and could change depending upon the building use location and humidity class. If the basic warm roof construction is followed before extra insulation is installed problems can arise. We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation. A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists.

The two classic types of flat roof designs are the warm flat roof and the cold flat roof. But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution. Warm flat roofs and cold flat roofs. In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists.