29 Feb '12, 2am

U.S. Group Will Relax Passive House Standard - EBN

U.S. Group Will Relax Passive House Standard - EBN

What's Happening from Environmental Building News U.S. Group Will Relax Passive House Standard “TrekHaus," a Passive House duplex in Portland, Oregon, certified by PHIUS is designed to use just 12.5 kWh/m2 /yr for heating. By Paula Melton The Passive House standard, often admired for simplicity, has also been criticized for rigidity. Now that Passive House Institute U.S. (PHIUS) has achieved independence from Europe and started its own certification system, called PHIUS+ (see ”Passive House U.S. Develops Separate North American Certification,” EBN Dec. 2011), the group is proposing changes that would relax the Passive House standard for some projects. PHIUS cofounder and executive director Katrin Klingenberg cites cost-effectiveness as the rationale behind her proposals. The PHIUS technical committee has yet to work out the details—Klingenberg doesn’t expect a complete dra...

Full article: http://www.buildinggreen.com/auth/article.cfm/2012/2/28/U...

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