Rubles are used widely

The protective layer can consist of sprinkling (fine -grained, coarse, scaly, dusty), material with a film, material with foil.

Traditional roofing roofing and rubles are used widely, but they no longer meet modern requirements. Polymeric -based materials (polymer membranes) are more resistant to all influences and durable. The disadvantages of the roll version of the material include the presence of seams, since they are placed overlapping.