A.
Scope. The provisions of this regulation shall govern the minimum
standards for basic equipment and facilities used for light and ventilation
of a structure.
B.
Alternative methods and devices. In place of the means for natural
light and ventilation herein prescribed, alternative arrangement of
windows, louvers or other devices or methods that will provide the
equivalent minimum performance requirements shall be permitted in
order to comply with the applicable building code and/or in a manner
prescribed by the Code Official.
A.
General. All areas in a structure shall be provided sufficient light
so as not to endanger health and safety. All areas in a structure
shall be provided with natural light or equipment to accommodate artificial
light of sufficient intensity and be distributed so as to permit the
maintenance of sanitary conditions and the safe use of the area and
the appliances, equipment and fixtures.
B.
Common halls and stairways. Every common hall and stairway in a structure,
other than one- and two-family structures, shall be adequately lighted
at all times with an illumination equivalent to the footcandles provided
by at least a sixty-watt standard incandescent light bulb for each
200 square feet of floor area, provided that the spacing between lights
shall not be greater than 30 feet. Every exterior stairway shall be
illuminated.
A.
General. All areas in a structure shall be provided sufficient ventilation
so as not to endanger health and safety.
B.
Mechanical ventilation. Where mechanical ventilation is provided
in lieu of natural ventilation, such mechanical ventilating system
shall be maintained in operation during the occupancy of the structure
or portion thereof. When part of the air provided by a mechanical
ventilation system is recirculated, the portion or volume of air recirculated
shall not be recirculated to a different habitable area.
