18-28-1206.4 Pipe penetrations.
   Openings for pipe penetrations in walls, floors or ceilings shall be larger than the penetrating pipe. Openings through concrete or masonry building elements shall be sleeved. The annular space surrounding pipe penetrations shall be protected in accordance with the Chicago Building Code.
(Amend Coun. J. 9-14-21, p. 35949, Art. XII, § 4)