N.Y.C. Admin. Code § BC H112: Section BC H112: Projecting Signs

H112.1 Materials.

Projecting signs shall be constructed entirely of noncombustible materials, and the facings of such signs shall be of noncombustible materials, except as permitted by Section H107.

H112.2 Attachment.

Projecting signs shall be securely attached to a building or structure by metal supports such as bolts, anchors, chains, guys or steel rods. Supports shall be secured to a bolt or expansion screw that will develop the strength of the supporting chains, guys or steel rods, with a minimum 5/8-inch (15.9 mm) bolt or lag screw, by an expansion shield. Turn buckles shall be placed in chains, guys or steel rods supporting projecting signs. Staples or nails shall not be used to secure any projecting sign to any building or structure. The dead load of projecting signs not parallel to the building or structure and the load due to wind pressure shall be supported with chains, guys or steel rods having net cross-sectional dimension of not less than 3/8 inch (9.5 mm) diameter. Such supports shall be erected or maintained at an angle of at least 45 degrees (0.78 rad) from the horizontal to resist the dead load and at angle of 45 degrees (0.78 rad) or more with the face of the sign to resist the specified wind pressure. If such projecting sign exceeds 30 square feet (2.8 m

2

) in one facial area, there shall be provided at least two such supports on each side not more than 8 feet (2438 mm) apart to resist the wind pressure.

H112.3 Wall mounting details.

Chains, cables, guys or steel rods used to support the live or dead load of projecting signs are permitted to be fastened to solid masonry walls with expansion bolts or by machine screws in iron supports, but such supports shall not be attached to an unbraced parapet wall. Where the supports must be fastened to walls made of wood, the supporting anchor bolts must go through the wall and be plated or fastened on the inside in a secure manner.

H112.4 Height limitation.

A projecting sign shall not be erected on the wall of any building so as to project above the roof or cornice wall or above the roof level where there is no cornice wall; except that a sign erected at a right angle to the building, the horizontal width of which sign is perpendicular to such a wall and does not exceed 24 inches (610 mm), is permitted to be erected to a height not exceeding 5 feet (1524 mm) above the roof or cornice wall or above the roof level where there is no cornice wall. A sign attached to a corner of a building and parallel to the vertical line of such corner shall be deemed to be erected at a right angle to the building wall.

Exception: On buildings 35 feet (10 668 mm) high or less, projecting signs, not exceeding 24 inches (610 mm) in width, may be erected to a maximum height of 40 feet (12 192 mm) above grade but in no case to a height of more than 15 feet (4572 mm) above the main roof level.

H112.5 Additional loads.

Projecting sign structures which will be used to support an individual on a ladder or other servicing device, whether or not specifically designed for the servicing device, shall be capable of supporting the anticipated additional load, but not less than a 100-pound (445 N) concentrated horizontal load and a 300-pound (1334 N) concentrated vertical load applied at the point of assumed or most eccentric loading. The building component to which the projecting sign is attached shall also be designed to support the additional loads.

H112.6 Thickness.

Projecting signs shall be limited in thickness as provided for in Table H112.6.

Table H112.6 Thickness of Projecting Signs

Projection (feet)

Maximum Thickness (feet)

5

2

4

2.5

3

3

2

3.5

1

4

For SI: 1 foot = 304.8 mm.

H112.7 Location restrictions.

Projecting signs shall not be erected on buildings located on those streets and avenues listed in Section 3202.2.1.8.