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本刊讯(记者谭少容)目前,建筑能耗在社会总能耗中所占的比例越来越大,北京要求新建建筑节能65%,而在影响建筑能耗的门窗、墙体、屋面、地面四大围护部件中,门窗的绝热性能最差,是影响室内热环境质量和建筑节能的主要因素之一。有数据显示,门窗的能耗约占建筑围护部件总能耗的40
Ben Shixun (Reporter Tan Shaorong) At present, the proportion of building energy consumption in the total energy consumption in society is increasing. Beijing requires 65% energy saving of new buildings. However, in the windows and doors, walls, roofs and floors that affect the building energy consumption, Among the four major enclosure components, the thermal insulation performance of windows and doors is the worst, which is one of the main factors that affect the indoor thermal environment quality and building energy efficiency. Data show that the energy consumption of windows and doors accounted for about 40% of the total energy consumption of building envelope components