I built a leanto on the front of my pole barn. It's 3 sided, so the horses can get shelter when the weather is nasty. At the last minute I decided to add a light. That required getting the cable (NM Romex) thru the wall from inside the barn. This left me two options.
- Drill a home thru the top 2x6, and thru the pole barn steel siding.
- Run the cable thru one of the ribs on the underside of the roof steel.
I chose the second option for two reasons. First, it was less work, since there is a rib every 10 inches, so there were plenty to choose from. Secondly, drilling thru steel siding is going to leave a sharp edge on the steel where the cable runs, which could eventually puncture the cable.
As far as safety, I think I chose the right way, but is it legal acording to the NEC?
(I'm not too worried about this, it wont be inspected, I'm just curious).
Thanks