Abstract
In this study, the building roof heat insulation structure was experiment and analysis. The simple approximation of a theory of thermal resistance network of the heat insulating structure was analyzed. The finite element method is proposed to evaluate the thermal characteristics of building components. The comparison between the finite element method and the thermal resistance network method was conducted by testing the thermal resistance of a concrete hollow block. Through the analysis of finite element method, the thermal resistance network and experimental validated, it is concluded the finite element analysis not only to calculated accuracy requirements but also has application in the form of the type of hole, material composition, intuitive analysis results. In the absence of test conditions or thermal performance test is not required, it is recommended to use finite element method to analyze problems.
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