N.Y. Multiple Residence Law § 260: One and two-story frame dwellings; area limitation

§ 260. One and two-story frame dwellings; area limitation. A frame

dwelling not exceeding two stories in height erected pursuant to plans

filed after April first, nineteen hundred fifty-nine, and containing an

area greater than three thousand square feet must, in addition to any

other applicable provisions of this article, comply with the following

provisions:

1. Fire-stopped partitions shall be constructed between apartments in

such dwelling so as to prevent the passage of fire, smoke or gases from

one apartment to another.

2. No section of such dwelling shall contain more than three thousand

square feet. Each such section shall be separated from all other

sections of the dwelling by fire walls of masonry or other materials

having a fire resistive rating of at least two hours. Such wall (1)

shall be unpierced except for openings for heat, utility and other

service lines and ducts with such openings sealed with incombustible

materials (2) shall extend continuously from the floor of the lowest

level of the dwelling, to at least two feet above the level of the

finished roof and (3) be fire-stopped at floors and roof in such manner

as to prevent the passage of fire, smoke or gases between sections.

Where there is a peaked or sloped roof, such wall may terminate at the

top of the roof boards.