§ 155.12 LIGHT AND VENTILATION.
   (A)   Light in nonhabitable space. Every stair, hall, cellar, and basement, located in a structure used for human habitation, shall have either adequate natural or artificial light available at all times. Every laundry, furnace room, and all similar nonhabitable work space, located in a structure used for human habitation, shall have either adequate natural or artificial lighting available at all times.
   (B)   Light in public halls and stairways. Every public hall and common stairway, located in a structure used for human habitation, and which is used primarily for ingress and egress in connection with two or more dwelling units or rooming units shall be supplied with a proper amount of natural light or lighting facilities controllable by the occupants of the structure and be available at all times. The natural or artificial lighting provided shall not be less than five footcandles (five lumens) measured in the darkest portions of the normally traveled stairs and passageways during the darkest hours of the day. Structures containing three or more dwelling units shall meet the requirements of the multiple residence law of the Ohio State Building Code § 1219.08.
   (C)   Electric fixtures in bathrooms. Every bathroom, shower room, toilet room, or compartment, located in a structure used for human habitation, shall have permanently installed artificial lighting fixtures, and the switches shall be so located as to avoid danger of electrical hazards.
   (D)   Ventilation in habitable rooms. Every habitable room shall be ventilated by either openable areas equal to 45% of the required window area or by equivalent mechanical ventilation.
   (E)   Ventilation in bathrooms. Every bathroom, shower room, toilet room, or compartment, located in a structure used for human habitation, shall be adequately ventilated.
(Ord. 39-1976, passed 8-16-76)