(A) General. The construction and building standards in this section pertain only to the B-1, B-2, B-3 and B-4 districts and properties in the I-1 and I-2 districts that abut State Highway 13 (State Street), County Highway 14 (Elm Avenue), US Highway 14 and any frontage road adjacent thereto. The provisions of this section shall not apply to any single-family or multi-family homes constructed in any commercial or industrial zones by conditional use or expanded by conditional use.
(1) Metal buildings. No galvanized or unfinished steel, galvalume or unfinished aluminum buildings (walls or roofs), except those specifically intended to have a corrosive designed finish such as Cor-Ten steel, shall be permitted in any zoning district except in association with farming operations or as allowed by this section.
(2) Finishes. Primary exterior building finishes shall consist of materials comparable in grade and quality to the following:
(a) Brick;
(b) Natural or cultured stone;
(c) Decorative concrete block;
(d) Pre-cast concrete panels with a decorative finish;
(e) Wood, provided the surfaces are finished for exterior use and wood of proven exterior durability is used, such as cedar, redwood or cypress;
(f) Curtain wall panels (non-structural, non-load bearing), provided the panels are factory fabricated and finished with a durable non-fade surface and their fasteners are of corrosion resistant design;
(g) Glass curtain wall panels;
(h) Stucco;
(i) Fiber cement lap siding (e.g., Hardie-Plank®);
(j) Steel lap siding;
(k) Vinyl lap siding; and
(l) Other materials as determined by the Building Official but not including galvanized or unfinished metal.
(B) Regulations. For all uses within the B-1, B-2, B-3 and B-4, as well as the I-1 and 1-2 Zoning Districts, any exposed metal finish on all buildings shall be subject to the following minimum requirements.
(1) At least 50% of the side of a building facing Elm Avenue or State Highway 13 (State Street) shall be constructed with a material other than exposed metal.
(2) For structures on a corner, at least 25% of the structure facing a secondary street shall be constructed with a material other than exposed metal or appropriate vegetative screening such as a combination of trees and shrubs shall be provided.
(3) For structures that have frontage on three streets, the side of the structure facing the third street may be constructed entirely of exposed metal.
(4) Any metal finish used in the building shall be a minimum of 26 gauge steel. The roof slope shall be limited to a minimum of one in 12 slope. The mixture of materials must be coordinated into the architectural design.
(Ord. 1040, passed 1-5-16)