712.1.9 Two-story openings.
BC § 712.1.9
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.
