Insulating Existing Concrete Flat Roof

Roof types the various types of roofs found on homes sheds garages and other buildings fall into one of the following categories.

Insulating existing concrete flat roof.

I ve built a timber frame to support a new plasterboard ceiling below the existing one. This is then covered with a further weatherproofing layer. I want to insulate below a flat roof without removing the existing ceiling. How to insulate a flat roof.

Cold roof systems are highly inadvisable as insulation from the inside will inevitably lead to the formation of condensation. This method eliminates the need for ventilation and the risk of condensation whilst providing superior thermal performance to cold deck. Insulation is placed in between the joists underneath the roof surface above. Insulation material is placed on top of the roof rather than in between the ceiling and the decking.

To produce a hot roof rigid insulation is fitted outside above the weatherproofing. Cold roof a very bad idea. Both these variants require different approaches to insulation which will be covered in this guide. There is only a small gap between this ceiling and a concrete roof cold roof felt covered.

The type that is right for your flat roof insulation job depends upon the state of the roof expert opinion on the best type and your budget. Concrete flat roof insulation though a very convenient form of construction even the development of better roofing technologies has not prevented flat roofing from continuing to be prone to traditional defects such as leakage component decay and in the more extreme cases structural failure.