Every dwelling structure containing three (3) or more dwelling units shall be provided with such fire- protective features as may be required for the adequate protection of the occupants thereof. The minimum requirements for such protection are as follows:
(a) All openings into interior stairways used as a means of egress shall be protected by self-closing doors having approved fire resistance, and such stairways shall be enclosed by partitions having approved fire resistance.
(b) No plain glass shall be used in any door, window or transom opening upon a public or common hallway from a dwelling unit or other private space. All such transoms shall be fixed or otherwise made non-openable, and any existing plain glass in such doors, windows or transoms shall be replaced with wired glass or an approved equivalent, or covered with an approved material.
(c) Whenever the use or occupancy of the building or structure has been changed from the use or occupancy for which the building or structure was originally erected, every door leading from a public or common hallway to a dwelling unit or other private space shall be made self-closing.
(d) The underside of any stairway located above a basement stairway or cellar stairway shall be protected by material having a fire resistance rating of not less than three-fourths (3/4) hour.
(e) Basement or cellar stairways shall be separated from the first floor level by openings protected by self-closing doors having approved fire resistance.
(Ord. No. 68-A-67. Passed 4-3-67, eff. 4-5-67)