No exterior portion or display area of any permanent exterior sign open to the elements shall be constructed of the following materials:
(a) Converted, laminated, manufactured or processed materials, such as and including, but not limited to, paper, unfinished, unsealed, or untreated non-exterior grade plywood, pressboard, wafer-board, cardboard, polystyrene foam or similar material not generally recognized and expressly designed for sign construction, erection and operation.
(b) Fabric and canvas, unless used in conjunction with awning or canopy signs.
(Ord. 17-46. Passed 2-5-18.)