Advances in Constructional Engineering

The exterior wall renovation of old civil buildings is an important measure to improve the energy saving performance and improve the living environment. This paper discusses the selection criteria of insulation materials, analyzes the thermal properties of commonly used insulation materials, and verifies their application effect through case studies. It is found that the reasonable selection of thermal insulation materials can significantly improve the energy saving effect of the building, and the material performance, cost and construction convenience should be comprehensively considered. The research results provide a scientific basis for the renovation of exterior walls of old buildings and promote the development of building energy saving technology.

Old building; Exterior wall renovation; Thermal insulation materials; Thermal performance; Energy saving