The Test and Analysis of Air Tightness for Zero Energy Building in Cold Region

The window is an important retaining structure. The gap of doors and windows cooling is an important part of building energy consumption of heating. A window with high quality and advanced construction technology can greatly enhance the air tightness of retaining structure. The experiment is air tightness test based on an energy-saving windows in a zero energy building in the cold region. After the test and analyzes on the windows, the air tightness of windows reached level 8 standard prescribed by “GB/T 7106-2008 Graduations and test methods of air permeability, water tightness, wind load resistance performance for building external windows and doors.