Which can lead

During the preparatory work, the roof evenness, its symmetry is checked. During the installation process, you will need a drill, a hacksaw, scissors for cutting a metal. Use the tool with a polymer coating to eliminate the destruction of the zinc layer, which can lead to rust. Leave the space under the tile, for this, lay the sheets on the hydraulic insulation film. The boards used for the crate should be 100 mm wide. The thickness of the crate is determined by the designer of the roof.