The following requirements shall govern one- and two-family dwellings:
a. The lighting and ventilation of kitchens constructed on or after July fourteenth, nineteen hundred sixty-seven shall be governed by the provisions on lighting and ventilation of section 27-2062 of article one of this subchapter.
b. Every kitchenette constructed on or after July fourteenth, nineteen hundred sixty-seven shall be provided with a window opening upon a street, yard, or court. Such window shall be at least one foot wide, have a total area of at least three square feet and be at least ten percent of the floor area of such kitchenette. However, when a kitchenette is on the top story, it may have, in lieu of such window, a skylight at least one foot wide with a total area of at least four square feet or one-eighth of the area of the kitchenette, whichever is greater, and which shall have ventilating openings of at least one-half of the area of the skylight. In lieu of a window, a kitchenette may have mechanical ventilation to provide at least six changes per hour of the air volume of such kitchenette.
c. Every kitchenette may be equipped with a door or doors, if the lower portion of each such door has a metal grille containing at least forty-eight square inches of clear openings or, in lieu of such a grille, there are two clear open spaces, each of at least twenty-four square inches, one between the bottom of the door and the floor, and the other between the top of the door and the head jamb.
d. In every kitchen and kitchenette, constructed on or after July fourteenth, nineteen hundred sixty-seven, all combustible material immediately underneath or within one foot of any permanent apparatus used for cooking or warming food shall be fire-retarded or covered with asbestos at least three-sixteenths of an inch in thickness and twenty-six gauge metal or with fire-resistive material of equivalent rating, except where such permanent cooking or warming apparatus is installed in accordance with requirements established by the department in conformity with generally accepted safety standards. There shall always be at least two feet of clear space above any exposed cooking surfaces of such apparatus.
e. The owner shall, in every kitchenette constructed on or after July fourteenth, nineteen hundred sixty-seven, fire-retard the ceilings and walls, exclusive of doors.
f. The owner of a dwelling shall provide every kitchen and kitchenette with gas or electricity or both for cooking and with a sink with running water, equipped with a waste and trap at least two inches in diameter.