This layer is protected by a easily filming film.

Another type of tile — soft (or flexible) tiles, is made on the basis of a fiberglass, which is impregnated with natural or modified bitumen. Modified bitumen has its advantages: it does not rot and is not subject to external atmospheric manifestations. A flexible tile sheet is covered on top with a multi -colored stone granulate. It does not absorb moisture at all, and also protects bitumen from mechanical damage and harmful ultraviolet rays. All this prevents the drawing of the drawing, and it remains unchanged throughout the entire life. The lower part of the leaf of the tile is processed by the self-adhesive mass of the bitumen-polymer. This layer is protected by a easily filming film. Soft tiles weigh a little and therefore it is convenient to transport it, but it requires a continuous flooring on the roof for installation, and when laying in the winter season, special equipment is necessary to heat it. The metal tile has two attractive bonuses at once: weight and cost. It is made on the basis of a durable steel sheet covered on both sides by special protective polymer materials. This tile is not only attractive externally, but also copes with adverse environmental factors, such as temperature changes and high humidity. Today on the market you can find a tile made from other materials (wood, rubber, plastic). But the feasibility of their application from a practical and financial point of view is in question.