Target recognition and obstacle analysis of energy efficiency renovation for existing residential buildings in northern heating areas

Analyses the necessity of energy efficiency renovation for existing residential buildings in northern heating areas. According to the problems from national construction energy efficiency special inspection and some case analyses, under the national request of energy efficiency and emission decrease, by economics analyses, recognizes the target of energy efficiency renovation. From the organization system, renovation pattern, financing way and technical support, analyses the obstacle of energy efficiency renovation, and points out some principles that ought to be followed.