Degradation risk assessment of external envelopes: A practical engineering approach

A method is proposed, which allows evaluation of moisture in building envelopes taking into account sorption properties of timber or other materials with pronounced sorption. This is essential in many situations when apparently no risk of degradation of the envelope occurs in the absence of condensation. The method implemented was the 3D numerical code, which allows to take into account the risks of thermal bridges. The results of computation can be compared to standard requirements on moisture content in the envelope.