A. Settling Or Cracking Of Structure: Where piping is enclosed by or embedded in cement, concrete, or other restructural material, not reinforced, it shall be so placed as to avoid the strains which may be induced by settling or cracking of the structure.
B. Encasing Pipe: Where piping (not including the service pipe, which is always to be made gas and watertight through the foundation wall) passes through concrete, masonry, brick or tile walls, it should be encased, with the pipe resting on the bottom of the casing pipe to provide at least one-half inch (1/2") clearance above it. The space above the pipe should be packed with mineral wool or other incombustible material to afford a fire stop, but care should be taken to avoid packing above the pipe in such a way that settling of the wall will produce excessive strain.
C. Pipe In cellars, Coal Bins: Pipe should not be run in coal bins or in other parts of a basement where wood, lumber, or other material is likely to be stored against it or to subject it to strain. Pipe which is run in a cellar should be hung from the ceiling and not supported on the walls. (Ord. 15.28)