N.Y.C. Admin. Code § BC H111: Section BC H111: Wall Signs

H111.1 Materials.

Wall signs erected inside the fire districts shall be constructed entirely of noncombustible materials, and the facings of such signs shall be of noncombustible materials, except as permitted by Section H107. Outside of the fire districts, the structure of wall signs exceeding 500 square feet (46 m

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) in display area shall be constructed of noncombustible materials, and the facings of such signs shall be of noncombustible materials, except as permitted in Section H107.

H111.2 Exterior wall mounting details.

Wall signs attached to exterior walls of solid masonry, concrete or stone shall be safely and securely attached by means of metal anchors, bolts or expansion screws of not less than 3/8 inch (9.5 mm) diameter and shall be embedded at least 5 inches (127 mm). Wood blocks shall not be used for anchorage, except in the case of wall signs attached to buildings with walls of wood. A wall sign shall not be supported by anchorages secured to an unbraced parapet wall.

H111.3 Extension.

Wall signs shall not extend above the top of the wall, nor beyond the ends of the wall to which the signs are attached unless such signs conform to the requirements for roof signs, projecting signs or ground signs.