(a) In order to protect business buildings from what is commonly called "climbing" or "roof" rats, all ventilators, chimneys, skylights or other openings on roofs which constitute a possible place of ingress for rats shall be covered the entire width and height with 19 gauge hardware cloth, except ventilators or skylights constructed of metal with openings not less than 18 inches above the roof surface.
(b) The owner of a business building shall also protect elevator shafts, fire escapes and guy wires in such manner that rats will not be able to gain ingress into the building.
(Prior Code, § 13-35; Ord. of 9-11-1945)