Join Randy Williams and Mark Wille as they decode airtight building enclosure strategies, codes, measurements and risks. Learn about key air change metrics and their importance in meeting code requirements and optional certifications like PHIUS. Dive deeper into understanding the how these metrics compare to nautrual air change rates and learn about the risks of overly tight structures including pressurization, appliance backdrafting and inddor air quality concerns. The team will explore causes of depressurization and how to test for these risks. Takeaway important best practice strategies for managing air pressure, improving IAQ and educating homeowners on these critical aspects of a high-performance home.