Discussion of climatic regions of building energy efficiency in China

Based on the relationship between the climate and building energy consumption, determines the climatic factors influencing the building energy consumption. Taking heating degree days based on 18 ℃ and cooling degree days based on 26 ℃ as the primary indexes, solar radiation in winter, relative humidity in summer and mean temperature in coldest month as the secondary indexes, divides the whole country into eight climatic regions of building energy efficiency and discusses the climatic characteristics of each region.