Use exterior Romex outside house along wall?

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  #1  
Old 05-25-07, 07:21 PM
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Use exterior Romex outside house along wall?

I want to add motion lights on the corners of my home and cant get into the small spaces of the attic to drop the wiring behind the walls. Can I run the wiring up into the attic then back down from a hole in the soffet and staple the wiring on the outside of the house near the soffet to the designated fixture? If not, what are my options?

Thank you
 
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  #2  
Old 05-25-07, 08:05 PM
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No, you cannot run the cable outside exposed. You can run conduit outside. If you do, you should run either individual conductors in the conduit or use UF cable.
 
  #3  
Old 05-25-07, 09:28 PM
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Short runs of conduit can just have plain NM Romex inside to get from the attic to the fixture box. I've not seen a Code against it, and I have this pass inspection here all the time, including from a panel up a conduit into an attic.

Bob, if there is a Code against this, I'd like to know; I don't recall actually looking for it once my inspectors didn't mind. If not, why do you recommend UF inside the conduit?
 
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Old 05-26-07, 05:26 AM
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My concern with a short run of NM outside a house is from the danger of water getting in the conduit.
 
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Old 05-26-07, 07:19 AM
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Sorry, MAC,

Non-metallic , type NM-B, cable is not rated for use on the outside of a structure, regardless of a conduit sleeve or not. This is covered in the Code.
 
  #6  
Old 05-26-07, 07:47 AM
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In the title to the original post the poster asks about "exterior Romex." This implies UF cable, which is, of course, allowed outside, when properly protected.
 
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Old 05-26-07, 08:05 AM
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MAC702 clearly mentions plain old NM Romex, this is what I was addressing.

I also do not think that UF exiting from the soffit and going into a box would constitute "physical damge" to trigger the need for a conduit sleeve. I certainly see enough UF installed without a sleeve.
 
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Old 05-26-07, 09:19 AM
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Agree with pcb. "Properly protected" is parallel to "not subject to physical damage".
 
  #9  
Old 05-26-07, 11:29 AM
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Well, there you have it, thanks. Good to know.
 
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