Portable Building - Hot siding vs. Wiring

[-dirt-]

Hi all:

I have a portable/prefab shed (wood floor joists, wood studs, thin metal siding) that I've recently wired and insulated. I started today walling it up with OSB.

Today I noticed how hot the thin metal (galvanized?) siding gets, and I'm concerned about the wiring that touches the siding along the interior, now that the OSB is compressing the batt insulation against the wiring and the wiring against the inside of the metal siding.

The interior of the siding was hot enough today that I couldn't hold my hand on it for two seconds. (Very technical, I know.)

Should I be concerned about this? I'm hoping the melting point of the outer wire sheathing is well above however hot the siding gets...

I installed the wiring first, the insulation over top. I can pull the insulation and reinstall under the wiring, if needed, but would obviously prefer not to.

Thanks for any insight you can provide.



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[Radix2]

NMB / Romex wire has insulation rated to 90c, which is 194F ( 60c for ampacity). I doubt you could put your hand on that temp for even a few seconds. Still, it would not be a bad idea to get it away from the siding. Instead if pulling the bats out, I would just slice it near the wire and reposition it that way, shouldn't take but a few minutes.