ABSTRACT
The heat and mass exchange between outside air and external building walls is the most distinct in a relatively thin surface layer. The activity of physical processes, substantial variations of temperature and moisture and other effects of various origins are particularly distinct in that layer. Durability of the surfaces depends on the prevailing climate effects and on a complex of physical and mechanical values of the materials used. The complex and partial methods have been worked out for application at investigation of destruction processes. Partial methods have been applied in the cases of investigation of the physical and mechanical characteristics, which are necessary to be evaluated before direct weather durability test in the climatic chamber along the program of simulated effects. It is established that the paint under consideration should be grouped according to their composition and characteristics of their macrostructure and base or primer layer to be covered by paint according to their susceptibility to moisture absorption and deformation.
