Hybrid Flat Roof
But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution.
Hybrid flat roof. We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation. Our final example of this block is a hybrid flat roof insulation solution is a highly cost effective solution where larger timbers 150mm have already been installed the solution starts off with our next gen sf19 superfoil insulation installed across the top of your joists with firings overs the top to provide the necessary drop. Warm flat roofs and cold flat roofs. This is then topped up with 120mm of glass wool installed.
It utilizes not one but two roofing systems to produce one of the strongest longest lasting roofing systems in the industry. However this is a general guide and could change depending upon the building use location and humidity class. A warm flat roof is. The hybrid system is a multi layered high performance roofing solution using superior time proven materials.
A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists. If the basic warm roof construction is followed before extra insulation is installed problems can arise. 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. In each case the name refers to the position of the insulation in relation to the roof deck.
Imagine a flat roof constructed on timber deck and joists.