The main advantage of the roll device of the roof is the absolute absence of horizontal seams. Such a roofing flooring is significantly more reliable.
Roofing copper coating is unique in its durability, the operational period exceeds 150 years.
The new copper roof is bright red, then its color is replaced by bronze, and then to malachite due to the formation of copper oxide, which protects the coating from destruction for many years. But in order for the roof to really serve for more than a hundred years, you need to pay sufficient attention to the roof frame or, in other words, rafters. In private houses, it makes sense to install wooden rafter farms, it is cheaper and quite reliable, but you can also use metal farms or reinforced concrete farms if desired. The classification and choice of rafter farms is not a simple task, but it should be solved.
Roofing copper is made in ribbons, it is cut into the sheets of the desired size already at the installation site. This allows you to arrange a roof without technological holes. The strips of copper are laid by the method of folding – special equipment are attached to each other by the bending method. This method gives the optimal quality of the seams even in the conditions of a minimum slope of the roof. Since all components are also made of copper, almost all the remains are used during installation, and less than half a percent remains waste.
Aluminum roofing material is also produced in the form of rolls with a protective coating applied to metal. Such a roof is resistant to corrosion, retains color for a long time, durable. When laying folding, the laying of the roof does not require technological holes in the roof. Aluminum sheets can be laid both on a concrete base, and on a wood -cut. If the roof is reinforced concrete, then with a slope of up to 6%, sheets are laid with an overlap of 20-25 cm and the sealant laying into the seams. If the slope of the roof is larger, the sealant is not used, and the overlapping is reduced to 15 cm. Aluminum roof does not require care, its operating time is above 100 years, and the price compared to copper is much lower.
Rolled technology allows you to perform folding roofs from standard galvanized steel and made with polymer coatings that make rolled material corrosion-resistant and durable. Such roofs have wonderful decorative properties. A steel galvanized sheet with polymers coated has a complex structure of 5-7 layers, all components of which are carefully selected. Polymer coatings applied to galvanized steel have different color resistance. And also differ in heat resistance, mechanical damage and other characteristics, which allows you to choose the necessary type of roof in accordance with weather conditions. The minimum number of joints allows you to give a galvanized roof increased reliability.
