§ 27-2059 Lighting and ventilation of living rooms in converted dwellings.
AC § 27-2059
a. Required windows. Except as provided in subdivision c, every living room in a converted dwelling shall have at least one window opening on: (1) A street, (2) A yard or outer court which complies with the provisions of section one hundred seventy-two of the multiple dwelling law, or (3) An inner court or shaft with minimum dimensions of three feet, nine inches in width and eight feet in length. For a room located on the top story, a skylight of the dimensions required in subdivision b may be substituted for a window. b. Size of windows.
(1)The total area of all windows in the room shall be at least one-tenth the floor area of such room.
(2)Every required window or skylight shall be at least twelve square feet, except that if the total area of windows in the room is one-eighth of the floor area this requirement shall not apply.
(3)At least one-half of every required window shall open. One-half of the skylight shall have ventilating openings, unless (a) the skylight is equipped with a minimum of one hundred and forty-four square inches of ventilation, and (b) there is at least one window in the room, and (c) the combined glazed area of the skylight and window is at least one-eighth of the floor area.
(4)The top of every required window shall be at least seven feet above the floor, except that on the top story it shall be a minimum of six feet above the floor. c. Noncomplying rooms.
