Running Gas Pipe In Concrete Floor

The only restriction that i recall is underground gas piping run through a foundation wall and or a slab.

Running gas pipe in concrete floor. In practice the plastic pipe in conduit is run from the 1st stage regulator underground to the 2nd stage regulator at the building from whence it is run by copper or black iron pipe to the fixtures. Branch lines run to individual appliances. The holes must follow a straight line across the floor and must ascend or descend so the pipe will be sloped 1 4 inch per foot. The branch line terminates in a drop line which is a vertical pipe dropping down to the appliance from an overhead branch line.

I haven t seen any installations where the fuel line is under the concrete floor in a building. The piping inside the house is called the gas supply line or building line. Running drainpipe through joists calls for meticulous work. Those are both covered in the upc and irc.

We will discuss some of the basics of inspecting gas piping. I can see no evidence of excessive corrosion. In other than industrial occupancies and where approved by the authority having jurisdiction gas piping embedded in concrete floor slabs constructed with portland cement shall be surrounded with not less than 1 1 2 inches 38 mm of concrete and shall not be in physical contact with other metallic structures such. I do not recall any restriction based solely on the pipe penetrating through concrete although a sleeve would be a good idea for a couple of reasons.

Supply branch and drop lines or risers.