Every multiple dwelling shall be provided with fire-protective features approved as being adequate for the protection of the occupants thereof. The minimum requirements for such protection are as follows:
(a) Every public hallway, corridor, stairway, exit or other means of egress shall be protected against fire with construction, other than doors, having a fire resistance rating of not less than three-quarters (3/4) of an hour and shall be kept clear and unobstructed at all times, so as to afford safe passage from each dwelling unit to open space at ground level.
(b) All doors into interior stairways shall be windowless, solid core or approved equivalent, self-closing doors. All doors used for egress into public hallways or corridors, other than into interior stairways, shall be windowless, solid core or approved equivalent doors.
(c) 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-quarters (3/4) of an hour.
(d) Basement or cellar stairways shall be separated from the first floor level by openings protected by self-closing doors having a fire resistance rating of not less than three-quarters (3/4) of an hour.
(Ord. 11-1962. Passed 5-7-62.)