What materials are used to lay a flat roof
Flat roofs differ in the type of supporting base, where the insulation for the house is installed. The base is concrete and from a profiled metal sheet. When laying on a concrete base, the insulation sits evenly, and there is no need to observe thoroughness, when laying, observing the same density on the lower layer. It turns out to be saving thanks to a smaller consumption of insulation and improving the thermal insulation of the roof.
When using a profiled sheet, the laying area is much smaller, about 2-3 times, depending on the type and section of the profile. Therefore, there can be no question of saving here, due to high requirements for the strength and density of layers of laying.