Knowledge of the long-term performance of building envelopes subjected to simultaneous heat and moisture transport is critical during the design stage. A number of simulation models that can be used to analyse the combined heat and moisture behaviour of building structures have recently been developed. This, however, is not a straightforward task. A general approach to hygrothermal analysis is presented in this paper. The method is applied for a case of a wood frame wall design, evaluating the risk for mould growth within the construction.
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