Roofs over Stands of Modern Stadiums
The modern stadiums are compound of multilevel objects. Stadiums should meet the requirements of FIFA and UEFA on realization of the international contest. It concerns a safety, durability and operational reliability of designs, engineering networks, fire safety, safety of spectators and participants of competitions etc. The most important element is the roofing over the stadium. Flat and spatial constructive circuits of coverings are submitted. In modern coverings, massive constructive elements, are replaced with easy spatial systems. They are always more economic under the expense of materials, but not at cost. The analysis of their work is given.