Design Guide for 65% Energy Efficiency of Residential Buildings in Sichuan Province

This guide is managed by the Sichuan Provincial Department of Housing and Urban-Rural Development and completed by the China Southwest Architectural Design and Research Institute with the relevant departments. The Practical Guideline for 65% of Energy Efficiency in residential buildings in Sichuan Province covers four climate zones including of severe cold, cold, hot summer and cold winter, mild areas in Sichuan Province. Strive to improve the building energy efficiency standards in these regions and lay a solid foundation for the full implementation of the 65% energy conservation standards in the future. According to the different window-wall ratios, the thermal heat transfer coefficient of the external window is between 1.8-2.2 K [W/(m2·K)] in severe cold and hot summer and cold winter regions.