Gas Lines On Roof

Sent this to my hvac guy who agrees that it is non standard install but not illegal.

Gas lines on roof.

Are we talking a ground union typically unions are only allowed at the fixture and meter. Section 2401 1 101 2 governs the applicability of the provisions of chapter 24 which covers fuel gas piping systems fuel gas appliances and related accessories venting systems and combustion air configurations that are most commonly found in single family and duplex type dwelling structures. From 1 2 to 1 1 2 pipe the face of a fitting to face of another fitting you add 3 4. Supply branch and drop lines or risers.

We will discuss some of the basics of inspecting gas piping. It extends straight up through the soffit across the roof and is run down into the home at various points. Definitely needed a permit and the inspection included a gas leak test before we could hook up our stove. I ran across this gas piping yesterday.

The branch line terminates in a drop line which is a vertical pipe dropping down to the appliance from an overhead branch line. Running gas lines on flat roof. Buy the right gas pipes and fittings for the job. Branch lines run to individual appliances.

The piping inside the house is called the gas supply line or building line. We had a gas line run over the roof and down into a kitchen wall when we redid our kitchen. Most domestic gas lines use 1 2 inch 1 27 cm through 1 1 2 inch 3 81 cm black pipe while large commercial projects sometimes use larger fittings up to 8 inch. But a ground union is allowed outdoors.