Study on the selection of thermal insulation materials and their thermal performance in the exterior wall reconstruction of old civil buildings
老旧民用建筑外墙改造中保温材料的选择及其热工性能研究

摘要

老旧民用建筑外墙改造是提升建筑节能性能、改善居住环境的重要举措。本文探讨了保温材料的选择标准，分析了常用保温材料的热工性能，并通过案例研究验证其应用效果。研究发现，合理选择保温材料能显著提升建筑节能效果，同时需综合考虑材料性能、成本及施工便利性。研究成果为老旧建筑外墙改造提供了科学依据，推动建筑节能技术发展。

Abstract

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.