04.19.2016 Regular Meeting - Laserfiche WebLink

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(1) Building Materials and additional Design Requirements a. Primary Materials. A minimum of 90% of all walls shall use the following standards: i. Building exterior materials must be masonry, as defined in this Code, used in their natural context and color. Brick, Stone, and Decorative Concrete Block material are acceptable as defined in this Code. MNs., b. Secondary materials. A rnmrn7um of 10% of all walls shall use the following standards: i. To provide design flexibility, stucco, wood, insulated architectural metal panels and rain screen architectural metal panels with no exposed fasteners and corrugated metal with no exposed fasteners may be used only to reinforce a vernacular design theme c. Prohibited Materials. i. Single -ply metal and metal panels with exposed fasteners, T -1 -11 and plywood -based siding materials are expressly prohibited. ii. Synthetic Stucco or Exterior Insulation and Finish System (EIFS) d. Percentage calculations shall be based upon the actual wall area of the buildings; windows, doors, etc. do not count towards the required percentages. e. The continuous plane of a roof line cannot be more than 100 feet. All roof mounted mechanical equipment must be screened from public view (2) Building Material Definitions a. Construction comprised of stone material, brick material, decorative concrete block, stucco (3 -step hard coat) or concrete panel construction, which is composed of solid, cavity, faced, or veneered -wall construction. Cement fiber board is not considered masonry for the purposes of this Code. b. Brick material includes kiln fired clay or shale brick manufactured to ASTM C216 or C652, Grade SW. Brick material can include concrete brick if the coloration is integral, the brick is not painted, and it is manufactured to ASTM C1634. Brick material must maintain a minimum thickness of two and one quarter (2.25) inches when applied as a veneer, and shall not include underfired clay or shale brick. c. Stone material includes naturally occurring granite, marble, limestone, slate, river rock, and other similar hard and durable all weather stone that is customarily used in exterior building construction; may also include cast or manufactured stone product, provided that such product yields a highly textured stone- like appearance, its coloration is integral to the masonry material and shall not be painted on, and it is demonstrated to be highly durable and maintenance free; natural or manmade stone shall have a minimum thickness of two and five- eighths (2.625) inches when applied as a veneer. d. Decorative concrete block includes highly textured finish, such as split faced, indented, hammered, fluted, ribbed or similar architectural finish; coloration shall be natural earth -tones integral to the masonry material and shall not be painted on; minimum thickness of three and five eighths (3.625) inches when applied as a veneer, shall include light weight and featherweight concrete block or cinder block units. e. Concrete finish, pre -cast concrete panel and tilt wall concrete panel construction is a method by which concrete elements are formed horizontally on -site or at a factory and, once cured, the elements are "tilted" to vertical position and braced into position until the remaining building structural components are secured.