In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists.
Hybrid flat roof construction.
But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution.
A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists.
Mod bit bur hybrid systems.
In each case the name refers to the position of the insulation in relation to the roof deck.
If the basic warm roof construction is followed before extra insulation is installed problems can arise.
A warm flat roof is.
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.
Imagine a flat roof constructed on timber deck and joists.
These hybrid systems are specified for certain situations and are.
Traditionally flat roof constructions fall in to two camps.
However this is a general guide and could change depending upon the building use location and humidity class.
You may ask why have a flat roof on a building that s a great question.
We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation.
Warm flat roofs and cold flat roofs.
Hybrid systems include a very small specialized category of low slope commercial roofing systems using a combination of mod bit and bur.
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.