Forecasting the Durability of Protective and Decorative Coatings of External Walls of Buildings

The information on the model of changing the properties of coatings, taking into account the hereditary factor, is given. It is shown that the kinetics of changes in coating properties, among other factors, is determined by the prehistory of aging. The application of the aging model, taking into account the hereditary factor in assessing the thermal aging of the coating, humidification of the complex effect of the environment, is considered. The numerical values of the function characterizing the influence of the hereditary factor on the change in the adhesion strength during the cyclic effect of the environment are given. The results of studies and calculations allow us to assume that, depending on the type of aging at its various stages, the rate of change in coating properties is determined by various components: directly the destructive effect of the environment, the prehistory of aging. Knowledge of these factors allows you to more realistically assess the resistance.