How To Insulate A Concrete Roof Slab

Building another sloped tiled roof over current flat concrete roof supported by metal.

How to insulate a concrete roof slab.

Ventilated roof solution paroc air is a simple and safe solution for making dry flat roofs. Martin holladay explains insulating a slab on grade in the energy smart details department. Paroc air keeps the roof structure dry without any mechanical systems. 3 clean the surface of the slab thoroughly then apply a coating of asphalt primer to help the asphalt cement bond.

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. 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. Insulating a slab on grade depends on at least four factors. Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.

The basis for this simple but effective solution is natural air pressure. The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects. The first thing to consider when looking into different types of concrete floors is why it s so important to insulate the floor slab. This layer of roof tiles is fragile inherently and roof cannot be used for walking etc.

Follow label directions and allow it to dry thoroughly. The climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem. Up to 80 of heat loss in a floor slab occurs around the edges.