A. Exterior Materials: No galvanized or unfinished steel, galvalum or unfinished aluminum buildings (walls or roofs), except those specifically intended to have a corrosive designed finish such as corten steel, shall be permitted in any zoning district, except in association with farming operations or as allowed by section 1000.4 of this ordinance.
B. Architecture And Aesthetics: Buildings in all zoning districts shall maintain a high standard of architectural and aesthetic compatibility with surrounding properties to ensure that they will not adversely impact the property values of the abutting properties or adversely impact the public health, safety, and general welfare.
C. Exterior Finishes: Exterior building finishes shall consist of materials comparable in grade and quality to the following:
1. Brick.
2. Natural stone.
3. Decorative concrete block.
4. Cast in place concrete or precast concrete panels.
5. Wood, provided the surfaces are finished for exterior use and wood of proven exterior durability is used, such as cedar, redwood or cypress.
6. Curtain wall panels of steel, fiberglass and aluminum (nonstructural, nonload bearing), provided such panels are factory fabricated and finished with a durable nonfade surface, and their fasteners are of a corrosion resistant design.
7. Glass curtain wall panels.
8. Stucco.
9. Vinyl.
10. Other materials determined to be acceptable by the city council.
D. Wall Area Calculation: For purposes of calculating exterior building material requirements, the total wall area of structures shall be calculated by taking the total solid surface area. The solid surface area shall encompass all exterior surfaces including any portion of overhead garage doors with windows but excluding all other windows and doors.
E. Business Districts: Building type and construction requirements within business districts shall be governed by the applicable provisions of the respective zoning district in which a use is located.
F. Industrial Districts: In industrial districts, all buildings constructed of curtain wall panels or finished steel, aluminum or fiberglass shall be required to be faced with brick, wood, stone, architectural concrete cast in place or precast concrete panels on all wall surfaces. Except for walls that face a public right of way, the required wall surface treatment may allow a maximum of seventy five percent (75%) of the metal or fiberglass wall to remain exposed if it is coordinated into the architectural design. For building walls which face public rights of way or abut residential uses, the required wall surface treatment may allow a maximum of fifty percent (50%) of the metal or fiberglass wall to remain exposed if it is coordinated into the architectural design. (Ord. 1988-12, 12-19-1988; amd. Ord. 1993-6, 4-5-1993; Ord. 1997-17, 11-17-1997; Ord. 2003-28, 11-3-2003; Ord. 2004-26, 12-6-2004; 2005 Code)