In the world of modern roofing materials, a special place is occupied by the metal -owned householders loved by many householders.
In fact, metal tiles are nothing more than profiled galvanized steel sheets covered with a layer of polymer. There are several types of this material that differ in external characteristics and technical indicators. When choosing this roofing material, it should be clarified what the thickness of the steel and the height of the profile, how carpers the galvanized layer is, which coating is processed a profiled sheet. It will not be superfluous to find out about the exact deadlines of the guarantee, as well as take an interest in the reputation of the manufacturer of the material.
High -quality metal tile is equipped with drains, strips and other necessary accessories. Plasticity and at the same time the strength of the steel sheet are the main and most important indicators that are inherent in it due to the optimally calculated material thickness (0, 45 – 0, 5 mm). So, a sheet with a thickness of 0, 4 mm will not be hard enough to install a safe roof. And a sheet with a thickness of 0, 55 mm will, on the contrary, will be too hard and difficult to profile.
As a protective layer, as a rule, a coating of polyurethane or polyester is used. Polyurethane is more expensive, but stronger and durable, polyester is a more economical option, with a less persistent color.
Choosing roofing material, it is important that it does not notice the joints between the sheets. On a high -quality mother, vertical joints are masked with a special groove, and horizontal joints – a comb located above the joint.