Habitable space shall have natural light provided by means of one
or more windows, skylights, transparent or translucent panels, or
any combination thereof that face directly on open space.
Kitchenettes, bathrooms and toilet rooms shall be provided with electric
light of sufficient intensity and so distributed as to permit the
maintenance of sanitary conditions and the safe use of the space and
the appliances, equipment and fixtures.
Habitable space shall have natural ventilation provided by means
of openable parts of windows or openable skylights or other openings
in exterior walls that face directly on open space.
Kitchenettes, bathrooms and toilet rooms shall be provided with ventilation
of sufficient intensity and so distributed as to permit the maintenance
of sanitary conditions and the safe use of the space and the appliances,
equipment and fixtures.
Ventilation shall be provided in unheated attics, spaces below flat
roofs and crawl spaces. Location and net areas of ventilation openings
shall be such as to minimize deterioration of structural members from
condensation or other causes, in conformity with generally accepted
standards.
Safe, continuous and unobstructed exits shall be provided from the
interior of the building to the exterior at a street or to a yard,
court or passageway leading to a public open area.
Nothing shall be placed, accumulated or stored on premises which
obstructs egress from stairways, passageways, doors, windows, fire
escapes or other means of exit.
In all buildings, exits, including vestibules, stairways, passageways,
corridors and hallways, but excluding fire escapes, shall be lighted
with electric light at all times so as to afford safe passage.
Vending machines and other equipment or materials shall not be located
in lobbies, corridors or passageways if such constitute a fire hazard
or interfere with the exit facilities.
Stairs, both interior and exterior, shall be arranged and constructed
with consistent treads, risers, and width in conformity with generally
accepted standards so as to provide safe ascent and descent.
Stairs or steps of more than three risers shall have a handrail parallel
to the stair slope on at least one side. Where one or both sides of
such stairs or steps are open, railings shall be provided on open
sides.
Railings or parapet walls shall be provided at open sides of porches
and decks more than 18 inches above grade, balconies, mezzanines,
accessible roofs, exit passageways, areaways, motor vehicle parking
decks and ramps and around floor openings.
Sleeping rooms within dwelling units shall be separated by a partition
from each other and from other spaces outside the sleeping rooms to
provide privacy.
A communal kitchen or dining room in a lodging house shall be accessible
to the occupants sharing such kitchen or dining room without going
through a dwelling unit or lodging unit of another occupant.