The Case Study on the Evaluation Method for Green Retrofitting of Existing Residential Buildings in Severe Cold and Cold Zones

In order to clarify the actual operation effect of the comprehensive environmental performance of the existing residential buildings after the green retrofitting in the severe cold and cold zones, this paper selects the existing residential buildings of typical city in the severe cold zone as the research object, using the established evaluation method EM-GRERB (Evaluation Method of Green Retrofitting for Existing Residential Buildings in severe cold and cold zones) and through field investigation and field measurement, the comprehensive environmental performance improvement of the project is confirmed.The results show that the degree of green retrofitting of the project is not obvious, need to further enhance the green retrofitting effect. This paper further analyzes the problems existing in the green retrofitting of the project, and puts forward the green retrofitting program, which provides a reference for the green retrofitting of the existing residential buildings in severe cold and cold zones. (C) 2017 The Authors. Published by Elsevier Ltd.