I have run into a lot of unprotected gas pipes which are in contact with the masonry walls. Does any know when this has been enforced?
Pete, can you be more specific? What kind of gas piping, and what type of masonry? True masonry, or brick veneer? Yes, makes a difference. Thx.
I will assume Black Iron through Block… no protection required by my AHJ. Typically, penetration hole has a butt load of sealant. Very rarely see any rust or damage. I do not call this application out as a defect.