![]() Some of the changes discussed in this article already are incorporated into the 2012 edition of the IECC because of the offset in publication dates between IECC and 90.1.Īddendum bb is one of the most significant changes. If it successfully completes the public review, it is then part of the next edition of Standard 90.1 and ASHRAE proposes the changes also to be made in the International Energy Conservation Code (IECC). Once a change passes in the committee, it is released for public review. Changes to ASHRAE standards can be proposed by committee members, subcommittee members, or members of working groups, or can be suggested by anyone through the continuous maintenance proposal (CMP) process. ![]() But while the 2013 edition does not result in as large a drop in energy use as was seen three years ago, the changes in this latest version still are significant.ĪNSI/ASHRAE/IES Standard 90.1 is a continuous maintenance standard, which means that the committee meets frequently (usually four times per year in person) to develop and vote on changes (addenda). ![]() The changes in ASHRAE Standard 90.1-2013 are not as radical as the changes made in 2010, which reduced the energy consumption of minimally compliant designs by approximately 30% compared to 90.1-2004.
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