In the context of the global energy crisis and climate change,improving building energy efficiency has become an urgent task.As one of the effective means to improve building energy efficiency,building exterior wall thermal insulation has attracted much attention.Porous thermal insulation materials have gradually become an ideal choice to improve the thermal insulation performance of buildings due to their advantages of light weight,superior thermal insulation performance and flexible construction.Therefore,combined with the application of porous thermal insulation materials,this paper makes an in-depth study on the thermal insulation and energy-saving renovation technology of building exterior wall from the aspects of building structure evaluation,porous thermal insulation system design and exterior wall structure reinforcement,aiming to provide new ideas and methods for the thermal insulation renovation of building exterior wall.
porous thermal insulation materialbuilding exterior wallthermal insulation and energy-saving renovation