Except when otherwise specifically provided for in this chapter,
all construction other than water tanks hereafter placed above the
roof of any part of any building shall be of materials in accordance
with the New York State Codes.
All buildings shall be provided with proper leaders for conducting
water from the roofs. In no case shall the water from leaders be allowed
to flow upon the sidewalk, but it shall be conducted by pipe or pipes
to the appropriate storm drainage system. If there is no storm drainage
in the street, then the water from the leader shall be conducted by
proper pipe or pipes below the surface of a street gutter, or to a
storm drain pool.
Unless provided with some other means of access to the roof,
every building more than 15 feet high, except dwellings with peak
roofs, shall have in the roof a scuttle, with a substantial iron ladder
leading thereto. All scuttles shall be covered on the top and edges
with sheet metal or other approved incombustible material. The scuttle
openings shall be at least two feet by three feet in size.
Cooling towers hereafter erected above any roof shall be of
incombustible material, except the drip bars, which may be of wood.