Hybrid Flat Roof Construction

Mod bit bur hybrid systems.

Hybrid flat roof construction.

Warm flat roofs and cold flat roofs. 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. Hybrid systems include a very small specialized category of low slope commercial roofing systems using a combination of mod bit and bur. In each case the name refers to the position of the insulation in relation to the roof deck.

But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution. When issues like those above occur it s not surprising that people look at the space between the joists and wonder if they can use it for more insulation. We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation. The two classic types of flat roof designs are the warm flat roof and the cold flat roof.

You may ask why have a flat roof on a building that s a great question. 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. A warm flat roof is. Flat roofs are nothing new.

If the basic warm roof construction is followed before extra insulation is installed problems can arise. In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists. A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists. Traditionally flat roof constructions fall in to two camps.