Closed balcony temperature difference correction factor for residential buildings in the Northern

Presents the selection methods of temperature difference correction factor in current codes, and points out some deficiencies. First, through theoretical analysis, identifies the main factors affecting temperature difference correction factor. And then, calculates the natural indoor temperature of closed balcony in Lhasa, Xining, Yinchuan and Xi’an under different combinations of building orientation, window to wall ratios, window types and cold air infiltration by using numerical calculation. Finally, gives recommended values for temperature difference correction factor of the four cities.