Because hard roofing materials are used on the roof of the house, it is necessary to solve the problem of sealing the joints. When any kind of work is formed, a small crack appears, which must be well covered so that water does not penetrate into the house. Since the roofing material is not a single coating, but a piece is connected, special roof skates are available for reliable joining. They are made to provide reliable protection against water penetration into the roof.