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.
A.
Materials. Except as otherwise in this chapter specifically provided,
every roof hereafter placed on any building or part thereof shall
be covered with an approved roofing of brick, concrete, tile, slate,
metal, slag, gravel or other approved incombustible material.
B.
Planking. When wood planking or sheathing is permitted in roof construction,
it shall not, in any case, extend across any side or party walls.
C.
Repairs. No roofing on any existing roof shall be renewed or repaired,
except in conformity with the requirements of this section; provided,
however, that when the renewal or necessary repairs do not constitute
more than 1/4 of the roofing in any one roof surface, the new work
may be made to conform to the existing roofing.
A.
Construction. All cornices, inclusive of those on show windows, and
gutters hereafter placed on the exterior of any building, except buildings
that are permitted to be of frame construction, shall be of incombustible
materials. When constructed of sheet metal, they shall be riveted
in the seams at intervals of not more than five inches. Cornices shall
be secured to the walls with metal framing or anchors spaced not more
than four feet apart, and extending not less than four inches into
the wall at top and bottom.
B.
Repairs. All cornices or gutters that may now be or that may hereafter
become unsafe shall be taken down and, if replaced, shall be constructed
to conform to the requirements for new cornices, except that when
any such cornice or gutter is not damaged to a greater extent than
1/2, it may be repaired with the same material as originally constructed.
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.
A.
Construction. All skylights hereafter placed in any building shall
have the sashes and frames thereof constructed of metal, except that
skylights in foundries or buildings where acid fumes are present as
an incident to the occupancy of the building may be of wood, in the
discretion of the Superintendent of Buildings. The frames and other
parts of metal skylights shall be riveted or otherwise securely fastened,
in addition to soldering, and shall be securely anchored to the supporting
structure.
B.
Glazing. Skylights placed over shafts of any kind shall be glazed
with glass as per the New York State Energy Conservation Code.
C.
Protection. Every skylight in which plain glass is used shall be
protected or glazed in accordance with the New York State Building
Code.
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.
A.
Construction. Every mansard or other slanting roof having a pitch
of more than 60°, hereafter placed on a non-fireproof building
over 40 feet high, shall be constructed of fireproof materials.
B.
Dormer windows. Every dormer window hereafter erected shall be constructed
in the same manner as the roof on which it is placed. The sides and
top shall be covered with any of the materials approved for roofing.
A.
Supports. Tanks of more than 500 gallons' capacity, hereafter
placed in or on any building, shall be supported on masonry, reinforced
concrete or steel construction of sufficient strength and carried
to a proper foundation, and must be enclosed on all sides by brick
or masonry so as to conform to the construction of the main building.
B.
Emergency outlet. Every such tank shall have in the bottom or on
the side near the bottom a pipe or outlet not less than four inches
in diameter, fitted with a suitable quick-opening valve for discharging
the contents in an emergency.
C.
Location. Such tanks shall not be placed over nor near a line of
stairs or an elevator shaft, unless there is a solid roof or floor
underneath the tank.
D.
Covers. All unenclosed roof tanks shall have covers, with proper
slope.
E.
Hoops. When hoops are used in the construction of tanks they shall
be of metal, round in section.
Cooling towers hereafter erected above any roof shall be of
incombustible material, except the drip bars, which may be of wood.
