§ 154.312 BUILDING MATERIALS.
   (A)   General.
      (1)   Steel or aluminum buildings. Except in association with permitted farming activities, no galvanized or unfinished steel or unfinished aluminum buildings (walls or roofs), except those specifically intended to have a corrosive designed finish shall be permitted in any zoning district.
      (2)   Building foundations. Building foundations not exceeding 2 feet and other such portions of a building's facade need not comply with the requirements for the primary facade treatment or materials.
   (B)   Single-family houses constructed in or moved into the city.
      (1)   Must be compatible with neighboring houses;
      (2)   Shall have a minimum width of 24 feet for at least 70% of its length;
      (3)   Shall have a full load-bearing perimeter foundation, and a floor loading capacity which complies with the requirements of the State Building Code;
      (4)   Shall have a minimum roof pitch of 4:12;
      (5)   Shall have a minimum roof overhang of 2 feet on roofs with a 4:12 pitch; steeper roofs may have a shorter overhang, except that no roof may have an overhang of less than 1 foot. All gable ends shall have a minimum roof overhang of 1 foot;
      (6)   Shall have steps and safety rails that meet all requirements of the State Building Code;
      (7)   Shall be designed to consist of exterior materials compatible with residential development in the area with regard to architectural quality and the massing of structures, and shall be designed with suitable fenestration.
   (C)   Duplexes, cluster houses, townhouses constructed in the city.
      (1)   Shall be designed to consist of exterior materials which are compatible with residential development in the area with regard to architectural quality and the massing of structures.
   (D)   Apartment buildings, institutional buildings, and commercial buildings constructed in the city. Exterior materials should possess certain qualities such as durability, scale, color, and detailing.
      (1)   Facades shall be constructed of approved materials which include 3 different classes.
         (a)   Class 1 materials include: brick, marble, granite, or other natural stone, textured cement stucco, copper, porcelain, EIFS (exterior insulated finish system), and glass.
         (b)   Class II includes: exposed aggregate concrete panels, burnished concrete masonry units, integral colored split face (rock face) and exposed aggregate concrete block, cast-in-place concrete, artificial stone, artificial stucco (must be reinforced to prevent damage and be a drainage-type system), fiber reinforced cement board siding, wood or wood-fiber siding, prefinished metal.
         (c)   Class III materials include: unpainted or surface painted concrete block (textured or untextured faces), unpainted or surface-painted plain or ribbed concrete panels, unfinished, galvanized or surface painted metal.
      (2)   Minimum material requirements: at least 50% of each building facade visible from a public street or walkway must be of Class I materials, except as approved under conditional use permit. Not more than 10% of each building facade visible from a public street or walkway may be of Class III materials. Portions of each building facade not visible from a public street or walkway may be constructed of greater percentages of Class II or Class III materials.
      (3)   The mixture of building materials must be compatible and integrated.
      (4)   Buildings shall have a mix of facade materials and design features to reduce long, blank walls. Design features may include, among other features, windows, doorways, cornices, niches, and recesses. In order to ensure continuity of materials and facade treatments on all visible facades including side and rear treatments, all building facades visible from a public street or walkway shall employ materials and design features similar to those of the front facade.
      (5)   Shall be designed to consist of exterior materials which are compatible with development in the surrounding area with regard to architectural quality and the massing of structures.
      (6)   Shall provide a fire lock box as per Jordan Fire Department Policy. If any major alterations or additions are constructed the building will also be required to install a fire lock box as per Jordan Fire Department Policy.
      (7)   Buildings within the C-2, Central Business District, shall comply with the requirements of the Downtown Design Standard Manual.
      (8)   Buildings within the C-3, Highway Commercial district should comply with the requirements of the Highway Commercial Design Standards Manual.
   (E)   Industrial buildings constructed in the city.
      (1)   Shall consist of 1 or more non-combustible, non-degradable, and essentially maintenance-free exterior materials.
      (2)   May be designed with office/showroom areas extending out from the principal mass of the building. If so designed, the exterior surfaces of such office/showroom areas shall conform to the following:
         At least 33% of exterior surfaces facing the front lot line, and at least 15% of exterior surfaces facing a side street, shall consist of brick, natural stone, granite, stucco, copper or glass.
      (3)   May be designed so that burnished block and specialty block forms, exposed aggregate concrete, concrete block, pre-cast concrete panels, wood, anodized aluminum or similar metals are used, if appropriately integrated into the overall building design and, in the case of wood, if not subject to damage due to heavy use or exposure.
      (4)   Shall not consist of exterior materials such as sheet or corrugated aluminum, or unfinished metals such as tin.
      (5)   Shall be compatible with surrounding industrial buildings.
      (6)   Shall provide a fire lock box as per Jordan Fire Department Policy. If any major alterations or additions are constructed the building will also be required to install a fire lock box as per Jordan Fire Department Policy.
(Ord. 2013-05, passed 5-20-2013)