But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution.
Warm roof cold roof hybrid.
Xtratherm manufactures an extensive range of high performance pir flat roof insulation boards that include tapered insulation providing comprehensive technically advanced solutions for all.
A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface.
Flat roofing solutions the xtratherm range of high performance insulation boards provides the ideal technically advanced solution for flat roof projects.
We would recommend either a fully warm roof with insulation on top of the roof deck or a cold roof with a minimum 50mm well ventilated cavity between the roof deck and the top of the insulation.
Warm roof construction requires that the entire roof construction is encapsulated within the insulation envelope of the building to be kept warm.
The breakdown warm roof vs cold roof.
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.
Imagine a flat roof constructed on timber deck and joists.
The object being to design out the possibility of warm moisture laden air coming into contact with a cold surface and condensing.
This solid tiled and insulated roof is designed to keep you warm in winter and cool in summer for all year round comfort.
There are three recognised designs of flat roof construction.
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.
Unfortunately you appear to be describing a hybrid roof which is a form of construction that increases the risk of condensation.
The warmroof hybrid is our luxurious solid tiled conservatory roof built with slimline glass panels to let the light into your room.
Warm cold and inverted.