Our sponsors are supporting our efforts to rapidly grow this market and address the challenges faced by passive house (and zero energy building) architects and builders.


Ultimate Air

Manufacturer of the highest performing ventilation technology in the United States for over 25 years. UltimateAir is dedicated to the advancement of low energy and healthy homes across North America.

475 Building Supply

Creators of the Smart Enclosure guides, 475 provides the essential air sealing, ventilation, insulation, and daylight components needed to build like the future depends on it.