How To Insulate A Concrete Roof

There is only a small gap between this ceiling and a concrete roof cold roof felt covered.

How to insulate a concrete roof. Internally there isn t enough headroom to insulate the roof. To produce a hot roof rigid insulation is fitted outside above the weatherproofing. This is then covered with a further weatherproofing layer. To insulate a flat roof with a concrete deck we recommend a warm deck construction method where the vapour control layer is sandwiched between the concrete deck and a layer of rigid pir insulation boards.

With an inverted warm roof construction put ballast usually graded pebbles or concrete paving slabs on top of the insulation in order to keep the insulation down in the event of wind. Cold roof systems are highly inadvisable as insulation from the inside will inevitably lead to the formation of condensation. The amount of insulation required with the specific structural deck will determine the. By insulating the building you are helping to keep valuable heat inside the building but also reducing the possibility of condensation forming.

Cold roof a very bad idea. The existing ceiling is sound but provides no insulation. I live in india where most of the building roofs are made of concrete. During the summer it is much hotter in this room.

Can you give me some information on insulating concrete for roof decks. I ve built a timber frame to support a new plasterboard ceiling below the existing one. I want to insulate below a flat roof without removing the existing ceiling. The inside roof is painted with white cement.

The importance of concrete garage insulation cannot be stressed enough when embarking on the lining out process. Insulating concrete is made with special lightweight aggregates meeting astm specifications c332 or made by using preformed or formed in place foam with cement cement sand mortar and also with lightweight aggregates. In summer during night the roof emits too much of heat that were absorbed during day time. The roof on the other hand is just a single slab of concrete prob about 5 thick.

This method eliminates the need for ventilation and the risk of condensation whilst providing superior thermal performance to cold deck. I was aware of the options like having good ventilation insulation trees etc. There are two main ways to insulate a concrete garage.