At the ICC 2018 code hearings in April, two sets of code changes were approved by the committees.These changes give builders greater flexibility in meeting the International Residential Code (IRC) and International Energy Conservation Code (IECC), specifically unvented attics and buried ducts.It’s worth noting that these measures received near unanimous support of IRC and IECC Committees and no challenges from the assembly.Once final approval is issued, these changes allow the codes to catch-up to building practices that have proven successful in the field and under the U.S. Department of Energy Building America program.
This article is the first of a two-part series. This article specifically focuses on unvented attics. An upcoming article will focus on buried ducts.
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