Interconnection of Vapor and Air in Walls

Why and how have changes in our expectations of our building impacted the way we build and the way code is being written and enforced. Let’s take a journey through applied building science and systems thinking and the code to reveal how moisture flow, air flow, and thermal flow in our building dictate how we think about vapor and bulk water management, vented and unvented roof and crawl spaces, biologicals (mold), indoor air quality, HVAC systems and more.