随着全球进入低碳时代,中国也正逐渐告别以牺牲资源和环境为代价的发展模式,努力进行低碳经济转型。然而在中国目前每年新建的约20亿m2住宅中,大多数是高能耗建筑;而既有的约430亿m2建筑中,只有4%采取了节能措施,单位建筑面积能耗为发达国家新建建筑的3倍以上。据测算,如果不采取有力措施,到2020年中国建筑能耗将是现在的3倍以上。因此,建筑行业毫无疑问成为节能的重点。小到 As the world enters the low-carbon era, China is also gradually bidding farewell to the development model at the expense of resources and the environment, and striving to make the transition to a low-carbon economy. However, at present, most of the approximately 2 billion m2 newly constructed housing in China each year are high-energy-consuming buildings. Only 4% of the existing 430 billion m2 of buildings have adopted energy-saving measures, and the energy consumption per unit of gross floor area has reached to that of newly-built buildings in developed countries More than 3 times. It is estimated that if we do not take effective measures, by 2020 China’s building energy consumption will be more than 3 times now. Therefore, the construction industry undoubtedly becomes the focus of energy saving. Small to