Abstract：
In Inner Mongolia region, window wall ratio and thermal performance of windows on the retaining structure walls average heat transfer coefficient has an important influence. According to the value of equivalent heat transfer coefficient of enclosure structure, exterior wall average heat transfer coefficient calculation, and the orientation than the window wall，the window of exterior wall thermal insulation, thermal performance factors such as building exterior insulation thickness calculation model and residential building palisade structure optimization model. Finally combining Hohhot a residential building, determine the palisade structure optimization, to optimize scheme is practical.
