(a) Chases or recesses that would when the work is completed, reduce the fire resistance, strength or stability of a fire wall to less than that required, shall not be built or cut in a fire wall.
(b) The aggregate size and location of openings in a fire wall shall be such that the protection against the spread of fire, strength or stability of the fire wall is not reduced to less than that required. (Ord. 1976-144. Passed 9-28-76.)