Blog

475's Canada Day Declaration In honor of Canada Day, 475 offers a joyful reinterpretation of the Prelude to the Constitution Act of 1867 and the celebrations at that time. We hope you enjoy. The Building Climate Action Act of 2019 Whereas the Principles of Passive House, Natural Building, and Daylighting have express … read more

Builder Spotlight: Jason Lear Jason Lear, founder and co-owner of Batt + Lear, kickstarted his company along with wife, Holly Batt back in 1999 in Seattle. Since its origin, the focus of the firm has been sustainable building. We recently sat down in conversation with Jason to discuss his work and mission. What got you interested … read more

Join us at NAPHN19 & Let’s Build The World We Want 475 is founded on the notions of knowledge sharing, community building, and providing the best-in-practice solutions and components. We're proud supporters and participants of the NAPHN19 Passive House conference coming up June 27-28 in New York City. If you're also interested in lear … read more

Join 475 For Pro Clima’s Canadian Tour June 19-25 475 High Performance Building Supply is excited to welcome Pro Clima’s own Lueder Herms to Canada June 19-25, and we hope you can join us. The unique and powerful properties of Pro Clima’s air- and moisture-managing materials are the cornerstone of 475’s building philosophy as described … read more

Ten Golden Rules for Foam-Free Flat Roofs When insulating a flat roof wood structure, 475's goal, as always, is to do it in the most healthy, structurally sound, durable, and ecologically friendly way - achieving truly high performance. This means we try to generally avoid using foam above or below the roof deck (for more on that, see … read more

Project Spotlight: A Green Professional Walks The Walk Chris Byers has a long history in the green building industry and currently works as a Commercial Solar Developer at Namasté Solar. Throughout his career he has assisted in the development and construction of over 24 MW of projects since 2016. Byers has designed and managed sol … read more