ASHRAE 90.1 and Cold-Weather Condensation


As the title suggests, compliance with the energy code does not guarantee condensation or mold-free wall performance. Hygrothermal performance of wall assemblies is exceptionally complex—a function of numerous variables and assumptions. Thus, simplified empirical design guides may not
provide prudent direction.

This article was originally published in the IIBEC Building Enclosure Symposium Proceedings for 2019. Learn more at their website: International Institute of Building Enclosure Consultants.