OP
madison069
Well-known member
I recall our plumbers using PVC one nominal pipe size larger than the gas pipe as the sleeve thru masonry/concrete. So, a 1" gas line would use a 2" PVC sleeve. The annular gap is sealed with electrician's duct seal. A 3/4" gas line would use a 1.5" PVC sleeve
We don't sleeve thru wood framing.
I have only seen PVC sleeving in my construction career here in VA and adjacent MD counties.
I had one plumber forget to sleeve a gas line and it was caught by the inspector. The plumber took a used tube of caulk, cut it to a length of 8" to make an open tube, and slit it along its side. He then pried it open and placed it around the gas pipe with the ends overlapping itself and slid it into the hole in the 8" concrete wall to become the sleeve. Inspector passed it.
I know codes are different from one state to the other. I’m going off my memory when we installed a gas line for a buddy’s garage in Texas and what he had to do. Should of known Pa is different and it’s been years, so code changes.
I know New Jersey had a nice laid out guideline on what’s expected of their sleeve requirements. As you stated, they also require 1.5” for 3/4” gas line.
But the PA code basically boils down to an inert material needs to be placed between the gas pipe and any surrounding material.



































