All chimneys in every building hereafter erected, and all chimneys hereafter altered or rebuilt, shall be constructed of brick, stone or other noncombustible material and shall be lined their entire height with vitrified tile flue lining. If of brick, the walls of chimneys outside of the flue lining shall be at least four inches thick, and, if of stone, at least eight inches thick. In all cases when a chimney is built against a party wall, the full thickness of the party wall must be in back of the chimney. All joists and framing timbers must be kept at least two inches away from all outside chimney walls.
(Ord. 288. Passed 5-24-54.)