Wall signs attached to the exterior walls of solid masonry or concrete shall be safely and securely attached to the same by means of metal anchors, bolts or expansion screws of not less than 3/8 inch in diameter which shall be embedded at least 5 inches. No wooden blocks or anchorage with wood used in connection with screws or nails shall be considered proper anchorage, except in the case of wall signs attached to buildings with walls of wood. No wall sign shall be entirely supported by an unbraced parapet wall.
(Prior Code, Ch. 300 § 727.19) (Am. Ord. 7494, passed 5-29-2001)