6.2.3.10 — Ducts in Exits

(1) A fire separation that separates an exit from the remainder of the building shall have no openings except for, (a) standpipe and sprinkler piping, (b) electrical wires and cables, totally enclosed noncombustible raceways and noncombustible piping that serve only the exit, (c) openings required by the provisions of Subsection 3.2.6., (d) exit doorways, (e) wired glass and glass block permitted by Article 3.1.8.14., and (f) a sprinkler protected glazed wall assembly conforming to Article 3.1.8.18. (2) Exits within scissors stairs and other contiguous exit stairways shall be separated from each other by a smoke-tight fire separation having a fire-resistance rating not less than that required for the floor assembly through which they pass. (3) Fire separations separating contiguous stairs described in Sentence (2) shall not be pierced by doorways, ductwork, piping or any other openings that affect the continuity of the separation. (4) A fuel-fired appliance shall not be installed in an exit. (5) An exit shall not be used as a plenum for a heating, ventilating or air-conditioning system. (6) An exit shall be designed for no purpose other than for exiting, except that an exit is permitted also to be designed to serve as an access to a floor area. (7) A service room shall not open directly into an exit. (8) Storage rooms, washrooms, toilet rooms, laundry rooms and similar ancillary rooms shall not open directly into an exit. (9) Service spaces referred to in Sentence 3.2.1.1. (9) shall not open directly into an exit. (10) In elementary and secondary schools, an exit shall be designed so that it does not serve as an access from one portion of a floor area to another portion of the same floor area.