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opnings

  1. jonochshorn

    Vertical openings in stories adjacent to atrium

    I have a sprinklered A-3 (library) occupancy with three stories, and the top two floors have vertical openings, so that all three stories are inter-connected. Section 712 of the 2015 IBC permits vertical openings in floor-ceiling assemblies only when they are "in accordance with one of the...
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