No person shall occupy as owner-occupant or shall let or hold out to another for occupancy any dwelling or dwelling unit which does not comply with the requirements of this section.
(A) All habitable rooms, other than a kitchen, must be provided with a means for transmitting natural light from outside complying with the following requirements.
(1) The area required for transmitting light from the outside shall be computed on the basis of clear glass measured as to the nominal glass dimensions. A material other than clear glass may be used, but the required area then shall be that necessary to provide the equivalent of clear glass lighting.
(2) The required clear glass area shall not be less than 10% of the floor area of the room, and not less than ten square feet. The effective area shall be computed at not more than 80% of the actual area when a required natural light area:
(a) Faces a wall or other obstruction at a distance of less than ten feet; or
(b) Is located below a roof or other obstruction projecting more than four feet from the face of the window or other natural light area and the plane from the head to the outside of the projection forms an angle with the horizontal of less than 45 degrees.
(3) Whenever a habitable room has natural light area openings from the room to enclosed porch, the area shall not be counted as a required light area unless the enclosed porch has a natural light area of not less than three times the required light area opening from the room to the porch.
(B) Whenever the only window in a room is a skylight type of window in the top of the room, the total window area of the skylight shall equal at least 15% of the total floor area of the room.
(C) Every habitable room shall have at least one window or skylight which can easily be opened or another device as will adequately ventilate the room. The total of openable window area in every habitable room shall be equal to at least 45% of the minimum window area size or minimum skylight type window size, as required in divisions (A) and (B) above.
(D) Mechanical or gravity ventilation shall be deemed to be adequate if it is a system approved by the Health Officer and Building Commissioner.
(E) A kitchen with a floor area of less than 70 square feet may be without either natural or mechanical ventilation if there is an opening of not less than 32 square feet between the kitchen and another room in the same dwelling unit and if the room into which the kitchen opens has the ventilation requirements of divisions (A) through (D) above.
(F) Every bathroom and water closet compartment shall comply with the light and ventilation requirements for habitable rooms contained in divisions (A) through (E) above; except, that no window or skylight shall be required in bathrooms and water closet compartments equipped with a ventilation system which may be kept in continuous operation and approved by the Health Officer and Building Commissioner.
(G) Every habitable room shall have an approximately central ceiling outlet or at least two convenience outlets; except, that a bathroom or toilet room shall have at least one electric outlet in the ceiling or wall. All electrical outlets and switches shall meet standards as prescribed in the Electrical Code.
(H) Every room intended for laundry, workshop, furnace, or play purposes and every inside stairway and passageway shall be provided with electrical outlets and switches that meet the standards as prescribed in the Electrical Code.
(I) Every multiple-dwelling shall have all fire exits, stairways, and passages thereto and all exits and stairways from the portions of the structure to which the public has access shall be marked and illuminated as described and specified in Chapter 34 of the Building Rules and Regulations of the State Administrative Building Council.
(Prior Code, § 152.05) Penalty, see § 10.999