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TAG flags edit and cross‑reference issues in IRC R325 intake/ventilation text
Summary
TAG members noted minor wording differences and a cross‑reference error in the 2024 IRC intake/ventilation sections; staff will restore a missing state amendment and forward a model‑code erratum to ICC if needed.
TAG reviewed the IRC’s updated light and ventilation sections (R325) and identified minor Washington‑amendment carry‑over issues and a model‑code cross‑reference error affecting the mechanical section for exhaust openings.
Why it matters: intake and exhaust opening locations can affect where mechanical equipment can be sited relative to loading docks and other openings; consistent wording and correct cross‑references keep enforcement predictable.
Annie O’Rourke explained that the 2024 IRC rearranged the light and ventilation language into a scoping subsection (R325.1) with separate light and ventilation subsections. She said the state’s existing amendments mostly carry forward into the new layout but noted a couple items that did not transfer into the posted draft.
TAG members debated a minor wording change — whether the state amendment should read “located a minimum of 10 feet” versus the model phrasing “not less than 10 feet.” Marco observed the regulatory effect would be the same and that the difference was largely editorial. He asked staff to research whether related sections (for example M1504.3 exhaust openings) already include parallel language that would make the amendment redundant.
Members also found an apparent erratum: the 2024 mechanical section M1504.3 still referenced R303 instead of the renumbered R325. The TAG recommended (a) restoring the missing state amendment language for intake openings in the posted draft and (b) notifying ICC of the incorrect model‑code cross reference so it can be corrected in the model text or via errata.
Action items: Annie agreed to insert the missing intake‑opening amendment into the posted draft and to include the M1504.3 cross‑reference note in her afternoon submission. Staff said they will forward the suspected model‑code erratum to ICC.
Ending: TAG will revisit the restored language and any ICC errata at its next review; no substantive changes to technical requirements were adopted at this meeting.
