1. Section R907.3, Recovering versus Replacement, of the International Residential Code is hereby amended by deleting Subsection 4 which prohibited applying a second layer of shingles in an area subject to moderate or severe hail exposure.
2. Section R313, Automatic Fire Sprinkler Systems, of the International Residential Code is hereby deleted in its entirety.
3. Section 905.10.3 of the International Residential Code is repealed and the following is adopted in lieu thereof:
Section 905.10.3 Material Standards. The following standards shall be used for the review, approval, and then construction in all residential zones.
a. Roof Type and Pitch. The type of roof and its pitch of the majority of the structure shall be consistent with other dwellings in the immediate neighborhood.
b. Materials.
1. The exterior building and roof materials shall be consistent with the material types of other dwelling units within a 300-foot radius in all directions. Materials on the dwelling unit shall have a uniform color.
2. Exterior materials shall be non-reflective and shall be of a color, material, and scale comparable to existing residential structures in the immediate area. Permanent siding shall be - or simulate - wood, wood shingles, brick, masonry, or tile, and shall be engineered to last a minimum of 25 years. Wood-based sheet siding is prohibited.
c. Flat Roof Systems. Any material that is permitted by the International Residential Code is allowed on flat roof systems. Green roof systems are permitted and encouraged.
d. Roofing Materials for Pitched Roof Systems. Roofing materials used on pitched roof systems shall be proven, high quality, durable materials, including:
1. Architectural shingles;
2. Concrete tile;
3. Slate;
4. Architectural standing seam metal as follows: Standing Seam design, Minimum 26 gauge steel, Maximum Slope - 4" in 12", Depth of Corrugation = 1 1/4", Galvalume Coating (55% Aluminum, 44% Zinc and 1% Silicon), Stainless Steel Screws with Neoprene Washers and at least a 30 Year Limited Perforation Warranty on the roof panels;
5. Building integrated solar arrays (solar panels that double as roofing material; and
6. Green roof systems.
e. Prohibited Roofing Materials. Corrugated or ribbed metal and other roofing materials that are not listed in subsection d., above, are prohibited.
f. All repairs or replacement of existing metal roofs must comply with these requirements.
g. Exceptions. These standards do not apply to auxiliary structures, such as storage buildings, with pre-built flooring that are not attached to foundations.
(Ord. 1537 - Sep. 21 Supp.)