外窗密闭性对寒冷地区建筑能耗的影响

Impacts of windows air tightness on heating energy use of buildings

分析了外窗密闭性对建筑能耗的影响，指出外窗类型、结构和密封措施上的差别可使外窗渗风耗能量相差数倍以至数十倍。提出了在建筑设计中改善外窗气密性的措施。

Analyses effects of sealing conditions of external windows on heating load of buildings in cold climate, reveals that the window type, structure and sealing conditions would make significant differences in the amount of heat loss due to air infiltration, with the maximum several or even dozens times the minimum, and proposes some measures for improving the windows in air tightness.