The roof of the building is susceptible to precipitation, as well as salts contained in them, which have a distant effect. Polymeric materials are used to protect the roof. Celles and foundations suffer from groundwater, which damped, thereby destroying concrete. They must be protected with penetrating solutions. The floor and walls of the premises suffer from capillary moisture and leaks through cracks. To protect them, they are covered with liquid or roll insulation.
