Zaretckaia M. A.

ANALYSIS OF DIFFERENT APPROACHES TO DETERMINING THE REQUIRED THERMAL RESISTANCE OF EXTERNAL WALLS

The economy of the Russian Federation is characterized by high energy intensity (a large amount of energy consumed per unit of GDP). Today we are faced with the
task of preserving the environment and, above all, the sources of hydrocarbon raw materials for
the fuel and energy sector of future generations. In terms of energy consumption in the country,
the housing sector ranks second, about 25%. To ensure the rational use of energy resources, it
is necessary to improve the energy efficiency of existing buildings and establish energy efficiency standards for newly designed and erected buildings and structures. Through the thickness of the external walls of the building in the process of its operation in the winter and transition periods, heat losses to the environment necessarily arise. Therefore, one of the most important indicators that determine the energy efficiency of a building or structure is the thermal resistance to heat transfer of its enclosing structures. In conjunction with heating, ventilation and
air conditioning systems, thermal resistance is also designed to provide an appropriate level of
thermal comfort for the person in the room.
Based on the analysis of existing approaches, the problem of choosing a determining
indicator that allows the most accurate way to calculate the required thermal resistance of the
external walls of the building is considered. It is concluded that the efficiency of wall insulation
is not higher than the normative values in order to save energy and an indispensable condition
for the implementation of sanitary and hygienic standards in the design and construction of enclosing structures with a specified service life.

Keywords: : energy efficiency, energy saving, exterior walls., heat transfer resistance, structural durability, thermal comfort, долговечность конструкции, наружные стены., сопротивление теплопередаче, тепловой комфорт, энергосбережение, энергоэффективность