Eleven addenda to ASHRAE/IES/USGBC/ICC Standard 189.1, Standard for the Design of High Performance Green Buildings — part of the process to develop the 2018 International Green Construction Code — are currently available for public review and comment. Published by ASHRAE, the Illuminating Engineering Society (IES), the U.S. Green Building Council (USGBC) and the International Code Council (ICC), Standard 189.1 contains minimum requirements for the siting, design and construction of high performance green buildings in support of reducing building energy use, resource consumption and other environmental impacts, and maintaining acceptable indoor environments.
Proposed addendum aq updates the standard's requirements for building systems commissioning.
Addendum ap updates the normative references in Section 11 and the informative references in Appendix G, primarily to reflect the latest publication dates in referenced standards.
Addendum as updates the acoustical requirements based on new technical requirements as well as review of the International Green Construction Code, Acoustical Society of America documents, Facilities Guideline Institute healthcare guide and the U.S. Green Building Council's LEED. The changes include a requirement that room background noise levels be controlled by calculation instead of by prescribing several interrelated features, allowance of either a prescriptive or testing approach for building envelope and interior assemblies, requirements for mechanical equipment and noise to adjacent properties by equipment and addition of a new section on acoustical testing.
The deadline for comments on proposed addenda aq, ap and as is Dec. 19.
In addition, eight addenda are open for public comment until Dec. 4. They are:
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