[Ord. No. 8748, 11-22-2021]
A. 
Any building as defined in the Building Code, as adopted by Chapter 505, which is located in an "R-6," "B-1," "B-2," "B-3," "B-4," "B-5," "M-1," "M-2" or "M-3" Zoning District shall have exterior finished walls composed of one hundred percent (100%) masonry on all sides of structure, except as otherwise permitted by this Section. There shall be no exposed non-masonry surfaces in the first three (3) feet above grade except doors and windows.
B. 
Exceptions:
1. 
Accessory buildings if otherwise permitted by ordinance and approved by the Planning and Zoning Commission;
2. 
Buildings specifically excepted from such requirement under provisions of a special permit or a "B-5" zoning ordinance granted by the Council in accordance with provisions of Chapter 405 of the Code;
3. 
Tilt-up construction is allowed on buildings of twenty thousand (20,000) square feet or greater provided that the front tilt-up face of the building shall be constructed with traditional masonry material unless otherwise determined by the City Council. "Traditional masonry" is defined as hand-laid in place traditional block back-up, brick, stone or any other masonry material as a face. Decorative and/or embossed tilt-up panels may be required on all other portions of the building. Tilt-up construction is the process of forming, pouring and curing Portland cement concrete panels on the job site and tilting/raising them up into place usually as the exterior wall of a building or structure. Tilt-up is different than pre-cast panels which are constructed off site.
4. 
Any buildings legally existing on or for which building permits have been legally issued prior to March 1, 1992, or any reconstruction thereof or any alterations and expansion thereof if approved by the Planning and Zoning Commission.
C. 
"Masonry," as used in this Section, shall be defined as exposed face brick or natural building stone which is used as a facing component which is applied over exterior wall back-up construction. Face brick shall be prismatic units in a variety of sizes, colors and shapes. Brick shall be manufactured from clay, shale or similar naturally occurring earthy substances and subjected to firing in a kiln. Brick shall be solid masonry units, having a minimum thickness of three and five-eighths (3 5/8) inches and meeting all the requirements of ASTM Designation C-216, Standard Specification for Facing Brick. Ceramic glazed facing brick are specifically excluded. Natural building stone shall include stone that is sawed, cut, split or otherwise finished or shaped having a minimum thickness of one (1) inch. Natural building stone shall include granite, limestone, marble, slate, soapstone, sandstone or other natural stones of similar characteristics and physical properties. Molded, cast or otherwise artificially aggregated units composed of fragments are specifically excluded. Materials specifically excluded from the definition of exposed masonry construction, shall include, but shall not be limited to: all hollow masonry units (i.e., structural clay tile, facing tile, customized architectural concrete masonry units, hollow brick units, etc.), all concrete masonry units, glass blocks, plastic and/or composite blocks, metal panels, plastic panels, plaster exterior insulation-finish system, precast concrete panels or any composition and all cast-in-place concrete walls, tilt-up concrete panels.
D. 
Restrictions On Use Of Masonry.
1. 
Masonry shall not be painted, but clear sealers may be applied if approved by the Building Commissioner.
2. 
Any masonry that was lawfully painted may only be repainted for maintenance purposes and only with written permission from the Director of Public Works. In cases where there is a need to perform maintenance on a painted area, the Director of Public Works or their designee may review and approve any repainting for maintenance reasons, provided that there is no change in color or texture.
3. 
Repainting for reasons other than for maintenance of current painted surfaces upon the approval of the Director of Public Works and requests to change the color or texture of the existing brick or masonry surface may not be done without the review and recommendation from the Planning and Zoning Commission and approval of the City Council.
4. 
Nothing contained herein shall excuse or authorize the unlawful painting or repainting of brick or masonry surfaces.
5. 
Exemption For Landmark And Historic Homes. All buildings listed on the National Register of Historic Places, designated Florissant landmarks or structures eligible to be designated Florissant landmarks which were painted prior to the adoption of this Section would be excluded from its provisions.