Gas Lines On Roof

We had a gas line run over the roof and down into a kitchen wall when we redid our kitchen.

Gas lines on roof.

Running gas lines on flat roof. Sent this to my hvac guy who agrees that it is non standard install but not illegal. We will discuss some of the basics of inspecting gas piping. Gas furnaces stove dryer i have never seen gas piping run across a roof like this.

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. The piping inside the house is called the gas supply line or building line. 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. Supply branch and drop lines or risers.

Are we talking a ground union typically unions are only allowed at the fixture and meter. But a ground union is allowed outdoors. Branch lines run to individual appliances. It extends straight up through the soffit across the roof and is run down into the home at various points.

I ran across this gas piping yesterday. 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. Definitely needed a permit and the inspection included a gas leak test before we could hook up our stove.