最近,一种多层节能住宅新体系通过了北京市鉴定。这一体系的节能设计全面细致,其主要特点是:①建筑物的耗热量满足第二阶段《采暖居住建筑节能设计标准》的要求,做到节能一步到位,而造价仅比一般多层砖混结构住宅高4～5%,节能投资少,效果显著。②建筑物外墙、内墙、隔墙、地面和层面均采用粉煤灰 Recently, a new multi-storey energy-saving residential system has passed the Beijing appraisal. The energy-saving design of this system is comprehensive and meticulous. Its main features are: 1 The heat consumption of the building meets the requirements of the second phase of the “Energy-saving Design Standard for Heating Residential Buildings”, so that energy conservation can be achieved in one step, and the cost is only higher than that of ordinary multi-story brick masonry. The residential structure is 4 to 5% higher, with less energy-saving investment and significant results. 2 Fly ash is used for the exterior walls, interior walls, partition walls, floors and layers of buildings