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 area for every habitable room shall be at least ten percent (10%) of the floor area of such room. Whenever walls or other portions of structures are located less than three feet (3') from the window and extend to a level above that of the ceiling of the room, such a window shall not be deemed to face directly to the outdoors and shall not be included as contributing to the minimum total window area. Whenever the only window is the skylight type window in the top of such room, the total window area of such skylight shall equal at least twelve and one-half percent (121/2%) of the total floor area of such room.
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 of openable window area in every habitable room shall be equal to at least forty five percent (45%) of the minimum window area size or minimum skylight type window size, as required in subsection A of this Section, except where there is supplied some other device affording adequate ventilation and approved by the Deputy Director.
C. Every bathroom, and water closet compartment shall comply with the light and ventilation requirements for applicable rooms contained in subsection B of this Section, except that no window or skylight shall be required in an adequately ventilated system which is kept in continuous operation and approved by the Deputy Director.
D. Every public hall and stairway in every multiple dwelling containing five (5) 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 (4) dwelling units may be supplied with conveniently located light switches, controlling an adequate lighting system which may be turned on when needed, instead of continuously lit.
E. During that portion of each year when the Deputy Director deems it necessary for protection against mosquitoes, flies and other insects, every door opening directly from a dwelling unit to outdoor space shall have supplied screens and a self-closing device; and every window or other device with openings to outdoor space, used or intended to be used for ventilation, shall likewise be supplied with screens; provided that such screens shall not be required during such period in rooms deemed by the Deputy Director to be located high enough in the upper stories of buildings as to be free from such insects, and in rooms located in areas of the City which are deemed by the Deputy Director to have so few such insects as to render screens unnecessary.
F. 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. 4267, 1-11-1978; amd. Ord. 4356, 10-11-1978)