One of the most complex structural elements of the building is the roof. It protects the building from the external environment: precipitation, temperature changes, solar radiation, wind effects, as well as from air pollution. The main element of the roof is the roof, as the condition of the roofing depends on the condition of the other elements of the roof and in this article will be considered modern building materials used in the device of roofs.

Keywords: roofing, roof, modern roofing, metal, profiled flooring, Ondulin, membranes, slate, tile

This article discusses the main problems faced by experts in the construction and technical expertise of real estate. The measures that can improve the quality in the performance of judicial construction and technical expertise are considered.

Keywords: optimization, judicial construction and technical expertise, litigation, major problems, construction contract, construction and installation work, completed