Rossn
Member
As part of rebuilding my home, some 1-1/4" black iron for natural gas was run to the utility room. It was run in the middle 1/3 of the 2x8 joists and is a pretty tight fit (see below). It's not possible to remove or re-insert new rigid pipe at this juncture.
The gas line runs parallel and close to a 18' engineered steel beam that supports the upstairs floor joists.
I am putting in new subfloor upstairs currently and, no doubt, there is sometimes some deflection on the beam, and we will be adding a lot more load.
Before I cover the beam with subfloor, I'd like to understand the level of concern about loading the gas line. I am assuming black iron will not flex, but would be great to hear from the experts.
At L/360, we'd see around 0.6" deflection, and I will check with the engineer what it was actually designed to.
Secondary to this, if it is determined as a safety issue, are there any more flexible products allowed in residential that could be patched into the section passing parallel to the beam (or flex joints, etc)?
Thanks in advance!
The gas line runs parallel and close to a 18' engineered steel beam that supports the upstairs floor joists.
I am putting in new subfloor upstairs currently and, no doubt, there is sometimes some deflection on the beam, and we will be adding a lot more load.
Before I cover the beam with subfloor, I'd like to understand the level of concern about loading the gas line. I am assuming black iron will not flex, but would be great to hear from the experts.
At L/360, we'd see around 0.6" deflection, and I will check with the engineer what it was actually designed to.
Secondary to this, if it is determined as a safety issue, are there any more flexible products allowed in residential that could be patched into the section passing parallel to the beam (or flex joints, etc)?
Thanks in advance!