The minimum standards for light and ventilation are as follows:
(A) Every habitable room shall have at least one window, or skylight, facing directly to the outdoors. The minimum total window area measured between stops for every habitable room shall be 8% of the floor area of such room. Whenever walls, or other portions, of structures face a window of any such room, and such light obstruction structures are located less than five feet from the window, and extend to a level above that of the ceiling of the room, they shall not be included as contributing to the required minimum total window area. Whenever the only window in a room is a skylight-type window in the top of such room, the total window area of such skylight shall equal at least 15% of the total floor area of such room;
(B) Every room in a dwelling unit, and means of egress, shall be sufficiently illuminated so as to provide safe, and satisfactory, uses;
(C) Year-round mechanically ventilating systems may be substituted for windows, as required herein, but must be approved by the Code Official in rooms other than rooms used for sleeping purposes;
(D) All outside windows and doors used for ventilation shall be screened;
(E) All windows and doors shall be made weather-tight;
(F) Windows and doors shall have no broken glass, and shall have adequate operable locks and hardware;
(G) Openable window area in each toilet room shall be at least two square feet, unless served by mechanical ventilation;
(H) Natural ventilation of spaces, such as attics and enclosed non-basement space, shall be provided by openings of sufficient size to overcome dampness, and to minimize the effect of conditions conducive to decay and deterioration of the structure, and to prevent excessive heat in attics;
(I) Utility spaces containing heat-producing, air-conditioning, and other equipment shall be ventilated according to the manufacturer’s requirements; and
(J) Mechanical ventilation shall be of sufficient size to eliminate dampness and odors of the area it is serving.
(Ord. 21-2018, passed 12-3-2018)