2009 IECC with New Hampshire amendments

Last updated: 14 February 2019
Buuilding envelop requirements applies to new residential buildings, as defned in the IECC, with wood framing and/or mass walls. For steel framed buildings, the same window requirements apply; however, refer to IECC section 402.2.5 for specific ceiling, wall and floor insulation R-value requirements. The code also applies to all additions, alterations and replacement windows and it is based upon the thermal envelop requirements in the 2009 IECC's prescriptive compliance option for the appropriate climate zone and does not reflect any state-specific amendments to the IECC.

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