This course defines and explains building science behind the code for the four control layers of the building envelope: water, thermal, air and vapor. There will be a detailed overview of air leakage, why it matters in a sustainable envelope and why air barrier continuity is critical to building performance. Participants will be asked to explore typical design principles for addressing the four control layers within the wall assembly. Finally, there will be an in-depth discussion of the critical interfaces, how to detail them and test them to ensure continuity of the control layers for the entire building.

Presented by various experts on behalf of DuPont Performance Building Solutions.