(A) When, in running pipe, it is necessary to cross wood joists or beams, they shall not be notched to a depth of more than 1/5 of the depth of the timber, and the notching shall in no case be further from a support than 1/6 of the total unsupported span of the timber.
(B) Where feasible, the piping shall be run so that only timbers having the shortest spans shall be cut.
(Ord. 169, passed 8-27-1928)