建筑节能的重要意义已经逐步受到人们的重视,先进的节能建筑设计技术不仅能使建筑本身具有良好的节能效果,还能使设备的功率和能耗大大降低,达到双重节能的效果。通过对既有建筑的分析,总结出门窗、外墙、屋顶等方面进行节能改造是既有建筑节能改造的重点。 The importance of building energy efficiency has been gradually valued by people. Advanced energy-saving building design technology can not only make the building itself have a good energy-saving effect, but also greatly reduce the power and energy consumption of the equipment and achieve the double energy-saving effect. Through the analysis of existing buildings, summed up the windows, exterior walls, roofs and other aspects of energy-saving renovation of existing buildings is the focus of energy-saving.