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New Hampshire State Building Energy Code Update

Posted By Administration, Tuesday, March 31, 2020
Updated: Friday, March 13, 2020

The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in New Hampshire is the State Building Code (based on the 2015 International Energy Conservation Code with state-specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-30 for all climate zones. This code became effective on September 15, 2019.

 Sample roof assembly diagrams and additional information can be found in PIMA’s New Hampshire code fact sheet.

Tags:  building codes  building envelope  buildings  Efficiency  energy codes  energy efficiency 

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