Where floor beams, ceiling beams or roof beams enter a party wall or fire wall or from opposite sides, the ends of such beams shall be separated by at least six inches by solid masonry or concrete. Such preparation may be obtained by corbelling the wall or staggering the beams, but no wall shall be corbelled more than two inches for this purpose. The ends of all wooden beams entering the masonry walls shall be cut to a level to make them self-releasing.
('72 Code, § 151.035) Penalty, see § 10.99