A. Commercial And Industrial Zones: In commercial and industrial zones, all signs and their supporting members shall be constructed of incombustible materials, unless otherwise provided in this chapter.
B. Multiple-Family Residential Zones: In multiple-family residential zones, all signs and their supporting members shall be constructed of incombustible materials, unless otherwise provided in this chapter.
C. Single-Family Residential Zones: In single-family residential zones, signs and their supporting members may be constructed of any material, subject to the provisions of this chapter.
D. Real Estate Signs: Real estate signs may be constructed of compressed wood particle board or other material of similar or greater fire resistivity.
E. Construction Signs: Construction signs may be constructed of compressed wood particle board or other material of similar fire resistivity.
F. Internally Illuminated Signs: Internally illuminated signs may be faced with plastics which comply with the Building Code and the Electrical Code.
G. Glass: Glass in all signs shall be shatter resistant.
H. Signs Within Buildings: Signs located completely inside a building or structure may be of any material not prohibited by other requirements of this code.
I. Wood: Wood in contact with the ground shall be foundation grade redwood, foundation grade cedar, all heartwood cypress, or any species of wood which has been pressure treated with an approved preservative. Trim and backing strips may be of wood.
J. Wall Signs: Wall signs with an area of twenty (20) square feet or less may be constructed of wood. (Ord. 80-O-1775, eff. 12-5-1980)