They replicated this problem using two - dimensional
hygrothermal modeling in a Montreal climate and demonstrated that using semi-permeable materials (building paper) on both sides of a fiberglass batt cavity had the best overall performance.
Other versions of WUFI do different things, so keep in mind that what you read below applies to the one - dimensional version of
this hygrothermal modeling tool.
As such this moisture transport mechanism needs to be considered by
hygrothermal models for the models to be useful.
Most
hygrothermal models simplify the interaction by dropping the interactions with the solid phase.
Not exact matches
The quantitative analysis for each wall system is based on a three ‐ dimensional energy
modeling program and a one ‐ dimensional dynamic heat and moisture (
hygrothermal)
model.