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The Quantum Passivhaus Way: Combining Award-Winning Preservation With Pre-Fab Passive House Methods In Ontario

The Quantum Passivhaus Way: Combining Award-Winning Preservation With Pre-Fab Passive House Methods In Ontario

The Quantum Passivhaus Way: Combining Award-Winning Preservation With Pre-Fab Passive House Methods In Ontario Project name: Elora Schoolhouse - 37 McNab Street Location: Elora, Ontario, Canada Project type: Single-family home on heritage site, preservation + Quantum Passivhaus engineered PHI certified pre-fab panel system Date o … read more

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475 Co-Founder Ken Levenson Appointed Executive Director of NAPHN

475 Co-Founder Ken Levenson Appointed Executive Director of NAPHN

475 Co-Founder Ken Levenson Appointed Executive Director of North American Passive House Network Ken Levenson and Floris Keverling Buisman founded 475 High Performance Building Supply in 2011 to help transform the way we design and build in North America: toward low-carbon, super-low-energy, safe, and natural construction guided by Pa … read more

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Adhesive Bonds and Failures: What's Going On?

Adhesive Bonds and Failures: What's Going On?

Adhesive Bonds and Failures: What’s Going On? Adhesives are foundational to airtight and watertight enclosures. It is essential that the adhesives we use bond for as much as 50 years, 100 years, or longer. How do we know when we have the right kind of adhesion? What are the different ways a tape's adhesion will be able to provide us wi … read more

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5 Tricks of the Trade For Thick, Dense-Packed Walls Behind Pro Clima Membranes

5 Tricks of the Trade For Thick, Dense-Packed Walls Behind Pro Clima Membranes

5 Tricks of the Trade For Thick, Dense-Packed Walls Behind Pro Clima Membranes With contributions by Matthew Brennan, National Sales Manager at Thermocell; Jesse Matthews, Quality Control at RDH (formerly carpenter at The Fourth Pig Green and Natural Construction). At 475, a large number of projects we work on use dense-pack cellulo … read more

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Project Spotlight: Phoenix Haus - Launch of the H19 Passive House

Project Spotlight: Phoenix Haus - Launch of the H19 Passive House

Project Spotlight: Phoenix Haus - Launch of the H19 Passive House Project Spotlight Location: Mesa, Colorado, USA Project type: Single-family new construction Prefab Builders: Phoenix Haus Design and Passive House Certification: Shape Architecture Assembly: 2x framed wall with densepack cellulose, continuous wood fiber insulati … read more

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The Ten Golden Rules for Foam-Free Flat Roofs

The Ten Golden Rules for Foam-Free Flat Roofs

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

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