In order to increase the life of the roofing material on a natural basis, to monitor and eliminate various kinds of damage in a timely manner, it is necessary to remember and execute the following following instructions: any roof should be served regularly, through the same time intervals. It is better to conclude an agreement with the installation company in order to carry out maintenance in a timely manner. In case of repair of shale roofs, special hooks are used to replace unsuitable tiles, which are made of stainless steel. In some cases, the installation of stone is possible using galvanized nails, or special high -quality self -tapping screws. All the resulting holes are covered with roofing silicone. At the first time of the operation of the roof, some stones can take place. The reason for this can be the poor quality of the material itself, or a violation of installation technologies when laying it. Replacement of knocked out tiles is carried out in one of many ways, which are as many as many spare parts for Mercedes. Due to the fact that the movements of the supporting structures of the rafters are possible, the shrinkage of the building itself, or the operation of the attic, may occur damage characteristic of the surface of the roofing material. For such damage, neither the manufacturer nor the roofer-installer is liable.