712.1.8 Masonry chimney.

Approved vertical openings for masonry chimneys shall be permitted where the annular space is fireblocked at each floor level in accordance with Section 718.2.5.

712.1.9 Two-story openings.

In other than Groups I-2 and I-3, a vertical opening that is not used as one of the applications listed in this section shall be permitted if the opening complies with all of the items below:

   1.   Does not connect more than two stories.

   2.   Does not penetrate a horizontal assembly that separates fire areas or smoke barriers that separate smoke compartments.

   3.   Is not concealed within the construction of a wall or a floor/ceiling assembly.

   4.   Is not open to a corridor in Group I and R occupancies, where such corridor is required to be fire-resistance-rated in accordance with Table 1020.1.1 or 1020.1.2.

   5.   Is not open to a corridor on nonsprinklered floors, where such corridor is required to be fire-resistance-rated in accordance with Table 1020.1.1 or 1020.1.2.

   6.   Is separated from floor openings and air transfer openings serving other floors by construction conforming to required shaft enclosures.

(Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023)

Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.

712.1.10 Parking garages.

Vertical openings in parking garages for automobile ramps, elevators and duct systems shall comply with Section 712.1.10.1, 712.1.10.2 or 712.1.10.3, as applicable.