THE EFFICIENCY OF FRAGMENTARY HEAT INSULATION OF EXTERNAL WALLS
Nowadays to improve the microclimatic parameters of the houses tenants of apartments of multi-storey buildings warm external walls by themselves. This is done in some apartments either from inside or outside the buildings. Such works are carried out without a project and any necessary thermo technical calculations. Therefore, they do not consider the negative consequences of the first method, related to the vapor permeability of the inner layer, and the low effectiveness of the second one. Such types of work are prohibited by new normative documents on fulfillment of repair works and reconstruction of buildings. The absence of obvious results of research, capable in demonstrative form to indicate the impracticability of such kind of works, is one of the reasons for the current state of affairs. In this paper, we have considered the basic constructive ways of inner and outer fragmentary warming of external walls. On the basis of numerical modeling of temperature fields of characteristic match of the walls to the ceiling the minimum temperature in the corners of the joints is defined, values of linear coefficients and the heat resistance are found. The inefficiency of fragmentary wall heat-insulation for heat insulated flats and a slight improvement of temperature characteristics in the adjacent apartments are found. The efficacy of external thermal insulation of walls is proved, when the entire surface of the walls is thermo-modernized.