Masonry trade urges council to reject proposal that would remove CMU mass-wall exception

Sep 11, 2025

Representatives of the Masonry Institute of Washington told the State Building Code Council listening session the proposed removal of the integrally insulated concrete masonry unit (CMU) mass-wall exception (proposal 264) would harm small masonry contractors and not deliver promised energy benefits.

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Chair Todd Bradford called the State Building Code Council listening session to collect oral testimony on economic impacts of proposed changes to the 2024 Washington State energy code. Adam Hutchinson of the Masonry Institute of Washington and contractor Jed Olofson told council members they oppose proposal 264, which would eliminate the CMU (concrete masonry unit) mass-wall exception.

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