This session explores the critical role of air tightness in achieving high levels of energy efficiency in new buildings. Participants will learn how air leakage impacts performance, comfort, durability, and code compliance, and why early testing is essential for successful outcomes. The course highlights the value of mid-construction blower door testing, demonstrating how identifying and correcting air-sealing issues during construction—rather than at final inspection—saves time, reduces costly rework, and ensures builders meet airtightness targets with confidence. Attendees will leave with practical strategies, best practices, and hands-on guidance to integrate effective air-sealing and performance testing into every project.
