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475 On-Site: Collective Carpentry in Bozeman, Montana

475 On-Site: Collective Carpentry in Bozeman, Montana

475 On-Site: Collective Carpentry in Bozeman, Montana Prefab Passive Construction in Big Sky Country As panelized enclosures gain popularity in Passive House circles, Rane Wardwell and Jan Pratschke, owners of Collective Carpentry, were early adopters helping to advance the industry. Their buildings are designed as complete syste … read more

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Weather Resistive Barrier Cheat Sheet

Weather Resistive Barrier Cheat Sheet

Weather Resistive Barrier Cheat Sheet A guide to advantages and differences between Pro Clima exterior membranes If you’ve spent your days thinking WRBs are just a required, code-minimum, flimsy sheets of No.15 Felt (per IBC 1404 or IRC 703.2), Grade D building paper (per ASTM D226), or spunbonded olefin housewrap; all with little dif … read more

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A CLT Home On The Lake

A CLT Home On The Lake

A CLT Home On The Lake Maine-based OPAL Architecture, Research, and Design, led by Matthew O’Malia, continues to trailblaze with innovative Passive House projects. With their Lake Waramaug residence in Connecticut, OPAL collaborated with 475 to achieve a Passive House enclosure that is not just energy-efficient but also carbon negativ … read more

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Good Energy Haus as a Case Study and Beacon for Sustainability

Good Energy Haus as a Case Study and Beacon for Sustainability

Good Energy Haus as a Case Study and Beacon for Sustainability Tim Eian, an architectural engineer and climate action advocate based in Minnesota, has promoted and practiced Passive House design since his university studies in Germany in the 90’s. His involvement in Passive House efforts reaches back before the initial Passive House m … read more

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Climate Crisis, Policy and Passive House

Climate Crisis, Policy and Passive House

policy Climate Crisis, Policy and Passive House A new building opening in New York City is common, but the grand opening of the high-performance affordable HANAC Corona Senior Residence in Corona Queens, this year, was different. This opening was the focus of news organizations, with attendance by U.S. Representative Alexandria Ocasi … read more

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Join us at NAPHN19

Join us at NAPHN19

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

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