(a)
It shall be in violation of this chapter to use any wood shingles as part of the construction material on structures classified as multifamily (including duplexes) or commercial buildings.
(b)
All single-family dwellings using wood shingles or shakes shall be factory pressure treated with a fire-retardant chemical to meet class C fire-resistant requirements of the National Fire Protection Association No. 256.
(c)
Existing wood shingles or shake roofs may be repaired with wood shingles or shakes providing the area repaired does not exceed 25 percent of the entire area of the roof, otherwise the area to be repaired shall be replaced with material specified in code.
(Code 1975, § 5-21)