Gas Lines On Roof

Buy the right gas pipes and fittings for the job.

Gas lines on roof.

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. 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. Sent this to my hvac guy who agrees that it is non standard install but not illegal. We had a gas line run over the roof and down into a kitchen wall when we redid our kitchen.

Branch lines run to individual appliances. But a ground union is allowed outdoors. Obviously you need to reseal the roof around the pipe entry point. Supply branch and drop lines or risers.

It extends straight up through the soffit across the roof and is run down into the home at various points. It just sits on pieces of 4x4 on the roof. Running gas lines on flat roof. Definitely needed a permit and the inspection included a gas leak test before we could hook up our stove.

The branch line terminates in a drop line which is a vertical pipe dropping down to the appliance from an overhead branch line. 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. The piping inside the house is called the gas supply line or building line.