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[doc] Updates to residential energy efficiency submittal requirements — Updated submittal requirements for residential permits now mandate documentation of HVAC duct systems, air handling equipment, and appliances location relative to the building thermal envelope, with…
[doc] Updates to residential roof ventilation submittal requirements — The City of Portland now requires three specific submittals for residential roof ventilation plans: net free ventilation rate specification (1/150 or 1/300), calculation of minimum required ventilati…

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