Installation of Uf wiring under vinly siding

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Sierrasparky

Senior Member
Location
USA
Occupation
Electrician ,contractor
What I guess I meant was how will it be protected by nails or screws during installation of the siding?
 

Sierrasparky

Senior Member
Location
USA
Occupation
Electrician ,contractor
I don't think that marking is a option in the NEC.
What if you replace the siding. Who will know where the wires are. You must provide protection from nails and fasteners!
 

hurk27

Senior Member
I think 300.4(E) will not allow this, While 340.10(4) allows it to follow 334 requirements when its not in the ground, and 344.15 allows it to follow the surface, but I believe if it is hidden behind a surface it would need to be 1?" back or it has to be protected as required in 334.15(B)
 
Location
RI
This a cement block building. concrete poured in blocks. I understand the physical protection part, but lets assume in was an interior wall in a residental home no physical protection is required beteewn studs and the romex wiring can still be damaged if drilled into by the non-tradesperson.


Thanks
jp
 

Cow

Senior Member
Location
Eastern Oregon
it would be 1.5 inches from surface.
thanks
jp
So it goes cement block-->1.5" rigid insulation board-->vinyl siding?

If the vinyl siding fasteners extend through the insulation board into the block that doesn't seem like a good place to run cable? Regardless of what the code says about it...
 

Jim W in Tampa

Senior Member
Location
Tampa Florida
So it goes cement block-->1.5" rigid insulation board-->vinyl siding?

If the vinyl siding fasteners extend through the insulation board into the block that doesn't seem like a good place to run cable? Regardless of what the code says about it...
Yes could hit a wire if not carefull but he has met code
 

hurk27

Senior Member
So it goes cement block-->1.5" rigid insulation board-->vinyl siding?

If the vinyl siding fasteners extend through the insulation board into the block that doesn't seem like a good place to run cable? Regardless of what the code says about it...
Around here they use 2" roofing nails or longer on siding, so it doesn't matter if the wire is 1?" back or not. but it meets code.
 

Sierrasparky

Senior Member
Location
USA
Occupation
Electrician ,contractor
I am very curious how does this meet code. It is my understanding that the wire must be 1 1/4 back. If the wire is on the surface of the plywood or stud how is that possible. If the wire was fished after thn I would agree otherwise it's not compliant in my opinion.
 

iwire

Moderator
Staff member
Location
Massachusetts
I think 300.4(E) will not allow this, While 340.10(4) allows it to follow 334 requirements when its not in the ground, and 344.15 allows it to follow the surface, but I believe if it is hidden behind a surface it would need to be 1?" back or it has to be protected as required in 334.15(B)

No such NEC requirement unless it is within 1.25" of a framing member.
 
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