Gas Lines On Roof

It extends straight up through the soffit across the roof and is run down into the home at various points.

Gas lines on roof.

The piping inside the house is called the gas supply line or building line. Branch lines run to individual appliances. But a ground union is allowed outdoors. Gas furnaces stove dryer i have never seen gas piping run across a roof like this.

It just sits on pieces of 4x4 on the roof. The branch line terminates in a drop line which is a vertical pipe dropping down to the appliance from an overhead branch line. Sent this to my hvac guy who agrees that it is non standard install but not illegal. From 1 2 to 1 1 2 pipe the face of a fitting to face of another fitting you add 3 4.

Are we talking a ground union typically unions are only allowed at the fixture and meter. I ran across this gas piping yesterday. Definitely needed a permit and the inspection included a gas leak test before we could hook up our stove. Supply branch and drop lines or risers.

Running gas lines on flat roof. Buy the right gas pipes and fittings for the job. Obviously you need to reseal the roof around the pipe entry point. We had a gas line run over the roof and down into a kitchen wall when we redid our kitchen.