SECTION 705 FIRE WALLS

705.11 Ducts and air transfer openings. Ducts and air transfer openings shall not penetrate fire walls. Exception: Penetrations by ducts and air transfer openings of fire walls that are not on a lot line shall be allowed provided the penetrations comply with Sections 712 and 716. The size and aggregate width of all openings shall not exceed the limitations of Section 705.8.

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