Permeable vs Non-Permeable Air Barriers – Which Decision is Best? (Virtual AIA)

Permeable vs Non-Permeable Air Barriers – Which Decision is Best?
Host: Scott Wolff

This session provides practical guidance on when to specify a permeable versus non-permeable air barrier — and why the wrong choice can create moisture risk in wall assemblies. Participants will learn current terminology and specification language used in CSI MasterFormat and the International Building Code, along with best practices to avoid the “double vapor barrier” condition. The course explains how to design exterior walls with proper drying potential and references building science research and technical articles from leading experts for further study. The course earns one learning unit (LU).

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