During the construction or repair of both residential and commercial buildings, completely different insulation materials are used, among which foam, mineral wool and many others should be noted. But the foam is the greatest popularity, since it has such positive qualities as environmental purity, reliability of the material, strength, resistance to various external influences, and also in a special way to note the level of thermal insulation. And besides, at the moment, you can find polystyrene at any specialized store, and most cases are provided with an affordable cost.