Air tightness is an important aspect of architectural design,which can significantly improve energy efficiency,reduce heating demand,extend the service life of buildings,and maintain a healthy and comfortable home living environment.With the continuous improvement of energy-saving design standards in China,the problem of high air infiltration heat loss caused by poor building air tightness is gradually being emphasized.This article mainly focuses on the airtightness guarantee of ultra-low energy building door and window openings in extremely cold regions of China.It proposes corresponding solutions for airtightness film materials and application methods suitable for extremely cold climate areas.Combined with external window systems,a airtightness detection and evaluation plan for engineering projects is formed..
关键词
气密性膜材料/超低能耗建筑/极寒地区/门窗洞口/耐候性
Key words
airtight membrane material/ultra-low energy building/extremely cold regions/door and window openings/weathering resistance