At the moment, there are a huge number of building materials that can be selected based on the conditions of the climate and desires of the owner. The foundation ensures the stability of the entire building, the walls play the role of the heat of the insulator, the roof protects us from precipitation and retains the internal structures of the structure.
Despite the fact that the function is the same on all houses and buildings, while the materials are used for it completely different. So for roofs that have a strongly broken surface, bitumen tiles are better suited, and for a flat roof you can use a metal tile. When using various materials for the roof, their individual characteristics must be taken into account. Bitumen tiles, for example, are best laid on a flat surface, that is, the roof must first be sheathed with plywood sheets. Metal tape must be laid, after sheathing the roof with vapor barrier material. The fact is that when the external and internal temperatures changes on the inner surface of the roof, condensate forms, which flows and enters the walls, which leads to their destruction. Another expensive but spectacular material for roofs is roofing copper. Copper, as you know, is oxidized, this layer serves as a protection of the environment for a copper sheet and makes it almost eternal. Another feature of the metal roof is that it is necessary to establish noise insulation under it, since even the bird who sits on the roof of your house will create a lot of noise.
Roof materials themselves have a very long service life, and with a competent installation, your roof will last 50 or more years. The same material can have different design, so the view of your roof can be completely different.