The Passive House standard will become the base building code for commercial construction, and is having influence in the residential arena, according to some industry observers. Massachusetts has already included PHIUS+2015 standards as an alternative compliance path to prescriptive requirements in the 2015 International Energy Conservation Code. Other states are expected to follow suit. Passive House standards carry an average premium of about 5% in construction costs, but some predict that figure will drop over time.
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