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flame spread rating of 25. For decks six feet or lower to the ground, the surface <br />below the deck shall be gravel placed over a sheet of 6 mil plastic or concrete slab <br />to prevent vegetation growth under the deck. <br />D. Fire and Ignition Resistant Fencing within 5 feet of a structure. New construction <br />and all replacement fences within 5 feet of the structure must be fire and ignition <br />resistant with a maximum flame spread index of 25. <br />E. Roof/Attic Vents, Crawlspace Vents and Solar Panels Screens - New structures <br />and all replacement vents shall have the following: <br />1. 1/8-inch metal mesh for attic vents, roof vents, eave vents and foundation <br />vents. Mechanical and plumbing vents do not need to be screened. <br />2. If solar panels on the roof are screened with metal mesh then the screen <br />must be removable to clean out debris from under panels. <br />F. Metal Gutters with Gutter Guards - New structures and replacement Gutters shall <br />be made of metal and shall have an approved ignition resistant means to prevent <br />accumulation of debris in gutter. <br />Sec. 15.70.030 Exemptions. <br />Exemptions from the requirements of this Chapter 15.70 are as follows: <br />A. Historic Home Exemption. Historic homes and buildings may be exempted by <br />the Building Official from roofing or siding requirements, or both, of this Chapter if <br />the Building Official finds there is no practical means to meet the intent of the <br />Chapter while maintaining historic features. <br />B. Commercial Structures that are fully sprinklered and are in compliance with <br />NFPA-13 and are located greater than 35 feet from the property line are exempt <br />from the requirements of this Chapter. <br />C. Temporary Structures. Permitted Temporary structures, such as tents and <br />membrane structures, are exempt for a period of time not to exceed a 180 days. <br />D. The building official may approve alternative methods demonstrating class A or a <br />flame spread of 25 or less in lieu of the requirements of this Chapter. <br />Section 2. If any article, section, paragraph, sentence, clause, or phrase of this <br />ordinance is held to be unconstitutional or invalid for any reason, such decision shall not <br />affect the validity or constitutionality of the remaining portions of this ordinance. The City <br />Council hereby declares that it would have passed this ordinance and each part or parts <br />hereof irrespective of the fact that any one part or parts be declared unconstitutional or <br />invalid. <br />Ordinance No. 1884, Series 2024 <br />Page 2 of 3 <br />