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PHIUS+ is the largest Passive Building Certification in North America. It is a well-recognized proven construction standard and quality assurance system. 98% of all North American certified projects were certified through PHIUS in 2017 and 100% certified projects were guided by PHIUS-certified professionals.

 

Passive Building 101

It’s about building science and balance. It's the best path to Net Zero and Net Positive. And it’s not just for houses—passive building works for schools, offices, hotels, multifamily, and high-rises too.

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Passive Building for Professionals

Raise your building science IQ, raise your game, and raise revenue by offering superior comfort and efficiency.

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Passive Building for Manufacturers

As passive building grows, so does the demand for high-quality, high-performance building components.

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From The Blog

Help Wanted: Identifying conditions that can complicate retrofits

Phius Senior Scientist Graham Wright weighs in here with a guest post about some on-the-ground research he did regarding retrofits. Graham conducted a brief street-view survey of residential housing in Portland, Oregon (Glenfair, Glendoveer, Rockwood neighborhoods), and documented conditions that would …

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