Notwithstanding the provisions of Section 25.02.01 of this Article, Section 1505.1.1 of the Building Code is amended by adding new paragraphs following the first sentence to read as follows:
1505.1.1 Roof Coverings. Wood shakes and wood shingles for reroofing or repairs to an existing roof, or new construction of a roof are permitted provided they are Class A fire retardant roofing coverings.
Exception: Repairs to existing wood shake or wood shingle roof covering, which are considered minor (up to five percent (5%) of the roof area), may be allowed with Class B wood shingles or shakes.
Notwithstanding Section 1507.8.5, when more than thirty percent (30%) of the total roof area is replaced within any one (1) year period, the entire roof covering of every new structure and any roof covering applied in the alteration, repair or replacement of the roof of the existing structure shall be a fire-retardant roof covering that is at least Class A.
Reroofing over an existing roof is not permitted unless the roofing is specifically approved in the classification required over existing substrate. Evidence of such approval must be submitted at the time of permit issuance. Fire severity zones are established by the Fire Department and the California Department of Forestry and Fire Protection.
(Ord. 0-19-1357, 11-13-2019; amd. Ord. O-21-1380, 2-10-2021)