(1) Building-mounted signs shall be constructed of materials which, at a minimum, meet the requirements of the type of construction of the building itself.

(2) Electric signs shall be constructed of noncombustible materials except that approved plastics are allowed.

(3) Nonstructural trim and portable display surfaces may be of wood, metal, or approved plastics or any combination thereof. (Ord. 05-2 §12, 2005; Ord. 96-2 §6, 1996; Ord. 86-12 §10, 1986).