How To Insulate A Concrete Roof Slab

Check out this article for a list of slab edge insulation solutions and episode 125 for my interview with henry edney of maxraft.

How to insulate a concrete roof slab.

Building another sloped tiled roof over current flat concrete roof supported by metal. 4 where rainfall can be heavy use a fine tooth trowel to apply cold cut back asphalt mastic over the entire slab use about one gallon per 100 square feet of floor. Ventilated roof solution paroc air is a simple and safe solution for making dry flat roofs. The first thing to consider when looking into different types of concrete floors is why it s so important to insulate the floor slab.

Insulating a slab on grade depends on at least four factors. The best way to insulate a slab is to isolate it from the ground. This layer of roof tiles is fragile inherently and roof cannot be used for walking etc. The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects.

The basis for this simple but effective solution is natural air pressure. Martin holladay explains insulating a slab on grade in the energy smart details department. 3 clean the surface of the slab thoroughly then apply a coating of asphalt primer to help the asphalt cement bond. Follow label directions and allow it to dry thoroughly.

Adding a layer of roof tiles placed directly on floor of roof which allow air to circulate under and over but keep convectional heating of the roof slab to a minimum. Up to 80 of heat loss in a floor slab occurs around the edges. Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.