Karimov Nasimjon Mirzorahimovich, Dilovarshoh Fayzuddinovich Kalandarov, Sharifov Mirzobahodur Habibovich
Annotation:
This article presents a comprehensive analysis of modern approaches to evaluating the thermal protection performance of external envelope structures of civil buildings. Particular attention is paid to improving the energy efficiency of building envelopes under the climatic conditions of the city of Khujand. Calculation methods for determining thermal conductivity of enclosing structures during the cold season and thermal stability during the hot season are examined. A comparative analysis of the thermotechnical parameters of various types of wall structures has been performed. The moisture regime of the enclosures has been assessed with temperature distribution and vapor pressure diagrams. The results of calculations are provided using the example of a multilayer wall structure, confirming compliance with the current regulatory standards of the Republic of Tajikistan.
Keywords: energy efficiency, energy saving, civil buildings, thermal stability, thermal protection, thermal conductivity, building envelope structures, thermal resistance, heating degree days for the heating season(HDD).

