Gas line in contact with concrete – is this code compliant

code-compliancenatural-gas

I'm approaching the end of my initial builder warranty on my home and had a home inspection service come out and identify potential problems. One of the items identified is the natural gas line in this photo which serves an outdoor BBQ area. The gas line is inside the constructed cabinet for the BBQ.

The inspector identified that the gas line should not be in contact with the concrete and that the "duct" tape is not adequate. I assume the city building inspector would have noticed this if it was not to code but one can never be sure about such things. It's also possible the sub-contractor filled the concrete base after the gas line was inspected.

EDIT to respond to comment in an answer: It appears to be a carbon steel line but I don't know for sure. The area is protected from weather because it is in a cabinet built for a BBQ though I'm sure it could get wet under specific storm conditions.

enter image description here

I'm in Scottsdale, AZ and the home was completed in late 2019 and occupied in March, 2020.

I will report this to the builder as a warranty issue but wanted to know if this is or is not code compliant? Reference to the code either way would be greatly appreciated.

EDIT: add additional photos of structure housing the gas line. The line is just inside and to the right of the access door:

enter image description here

enter image description here

Thanks

Best Answer

The only code I know around gas lines pertains to foundation walls/floor. There it must be in a sleeve. For this, it is certainly best practice (and actually easier to pour concrete with a sleeve).

This is really only an issue in your case if the gas line material is corrosive to water and may never be an issue at all if it is under something and never sees standing water. What material is used for your lines?

Related Topic