The Stretch energy code is summarized in this PDF: 780 CMR 115 Appendix AA but references chapter 13 and Residential chapter 11 depending on the building size and type. The Residential low-rise building energy chapter is Residential Chapter 11: Energy Efficiency Amendments (as of 2/7/20) The Commercial building energy chapter (which also covers large multi-family) is Chapter 13: Energy Efficiency Amendments (as of 2/7/20) The IECC2018 is available from the International Code Council website: Note: Commercial buildings may also follow ASHRAE standard 90.1-2016 and a joint IECC2018/ASHRAE-90.1-2016 code book is available. From November 8th 2020 onwards, the IECC2018 with MA amendments is the minimum energy code for new building permits in Massachusetts. As part of the Green Communities Act of 2008, Massachusetts is required to update its building code every three years to be consistent with the most recent version of the International Energy Conservation Code (IECC).Īccordingly, Massachusetts has adopted the IECC2018 with MA amendments, effective Feb 7th 2020, and running concurrently with the IECC2015 amended code until November 7th 2020.
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