Mould growth damages due to moisture: comparing 1D and 2D heat and moisture models?

An excessive level of moisture in building damages their quality. Key factors associated to the develop-ment of this damages mainly depend on the hygrother-mal fields inside building envelope. These key factors can be associated with HAM models to predict the de-velopment of moisture damages. Different granulari-ties of HAM modelling exist in literature and can be used. In this paper, main advantages and drawback of most common approaches are presented and dis-cussed. A test case is chosen to illustrate the different issues.