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Class C roof coverings shall be of material approved by the building commissioner after satisfactory evidence that it is effective against light fire exposures. Under such exposures, Class C roof coverings shall not be readily flammable; shall not readily carry or communicate fire; shall afford at least a slight degree of heat insulation to the roof deck; shall not slip from position; and shall possess no flying brand hazard; but may require occasional repairs or renewals in order to maintain their fire-resistive properties.
(Prior code § 65-7.3; Amend Coun. J. 3-5-03, p. 104990, § 43; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1)