No person shall occupy as owner-occupant or let to another for occupancy any dwelling or dwelling unit, for the purpose of living therein, which does not comply with the following requirements:
   (a)   Every habitable room shall have at least one window or skylight facing directly to the outdoors. The minimum total window or skylight area, measured between stops, for every habitable room shall be ten percent of the floor area of such room. Whenever walls of other portions of structures face a window of any such room and such light-obstruction structures are located less than three feet from the window and extend to a level above that of the ceiling of the room, such a window shall not be deemed contributing to the required minimum total window area.
   (b)   Every habitable room shall have at least one window or skylight which can easily be opened, or such other device as will adequately ventilate the room. The total openable window area in every habitable room shall be equal to at least forty-five percent of the minimum window area size or minimum skylight-type window size, as required in subsection (a) hereof, except where there is supplied some other device affording adequate ventilation and approved by the Building Official.
   (c)   Every bathroom and water closet compartment shall comply with the light and ventilation requirements for habitable rooms contained in subsections (a) and (b) hereof, except that no window or skylight shall be required in adequately ventilated bathrooms and water closet compartments equipped with a ventilation system approved by the Building Official.
   (d)   Every habitable room of a dwelling shall contain at least one wall-type electric convenience outlet, and every water closet compartment, bathroom, laundry room, furnace room and public hall shall contain at least one supplied ceiling or wall-type electric light fixture. Every such outlet and fixture shall be properly installed, shall be maintained in good and safe working condition and shall be connected to the source of power in a safe manner.
   (e)   Every dwelling shall have heating facilities which are properly installed, are maintained in safe and good working condition and are capable of safely and adequately heating all habitable rooms, the bathroom and water closet compartments in every dwelling unit located therein to a temperature of at least sixty-eight degrees Fahrenheit at a distance three feet above floor level.
   (f)   Every public hall and stairway in every multiple dwelling containing five or more dwelling units shall be adequately lighted at all times. Every public hall and stairway in structures devoted solely to dwelling occupancy and containing not more than four dwelling units shall be supplied with conveniently located light switches, controlling an adequate lighting system which may be turned on when needed, instead of full-time lighting.
   (g)   Every basement or cellar window used or intended to be used for ventilation and every other opening to a basement which might provide an entry for rodents shall be supplied with a screen or such other device as will effectively prevent their entrance.
(Ord. 1966-4. Passed 9-13-66.)