The installation of a drainage system on the roof is an extremely responsible matter, the quality of which
As the current SNiP prescribes, the internal drain as a sanitary system is calculated by the architectural and construction
Of all the roofing materials for individual housing construction, asbestos-cement sheet steadily ranks first.
Slate, as a roofing material, does not lose its popularity, since it is not only very reliable,
Profiled tin sheets are widely used in industrial and civil construction. However, they are not made