一、建筑节能形势随着改革开放的深入发展，我国房地产业十分活跃，改革开放几年间，全国住宅竣工面积就达91亿m~2，全国人均建造量年约0.8m~2。然而，从功能、质量、效益等方面，则基本上是高消耗、低效益的粗放型产物。主要表现在住宅结构开间小，结构面积大，材料消耗大，可 First, the building energy conservation situation With the deep development of reform and opening up, China’s real estate industry is very active, in the past few years of reform and opening up, the country’s residential completed area of ​​9.1 billion m2, the national per capita construction volume of about 0.8m2. However, from the aspect of function, quality, efficiency, etc., it is basically an extensive product with high consumption and low efficiency. Mainly in the small residential structure, large structural area, material consumption, can be