ceiling fans @

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I now am considering just running 12/3 w/g UF wire to the fans since they will have light kits on then (at least at this point in time, that is what they are planning on doing). Also, now they want motion detection flood lights at the edges of the porch and sofits . Recon that I will run 12/2 w/g UF to these locations, going into a w/p box attached to the underside of the porch rafters.
 
JDB3 said:
Under a decking covered with metal roofing, I would think, normally dry.
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Reality is it likely is normally dry. If the porch is an open porch one still needs to determine if it is still considered outdoors or not. If it is considered outdoors then inside of raceways located outdoors is a wet location primarily because of condensation potential.

I have seen many raceways run through attics that never actually penetrate roof or walls - so they are not outdoors, yet have condensation issues because they are subject to fairly large temperature changes.
 
300.7 (A)
The raceway is known to be passing from an area of one temperature to an area of another temperature, in the house to outside. The area where condensation is know to be a problem examples from this section: Cold storage OR passing from the interior to the exterior of a building.

This happens a lot here in Texas where we swing from 80 degrees to 30 degrees. It happens so bad we put drains in frequently.
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:)
 
FE427TP said:
300.7 (A)
The raceway is known to be passing from an area of one temperature to an area of another temperature, in the house to outside. The area where condensation is know to be a problem examples from this section: Cold storage OR passing from the interior to the exterior of a building.



:)
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Yes that's correct. Regardless, outside the house is considered a damp location, at minimum, in every jurisdiction I have worked in.

With that section you are quoting he will need to seal the pipe by filling it with an "approved material" in addition to using a UF cable or TW.


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FE427TP said:
300.7 (A)
The raceway is known to be passing from an area of one temperature to an area of another temperature, in the house to outside. The area where condensation is know to be a problem examples from this section: Cold storage OR passing from the interior to the exterior of a building.
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The house will have foam insulation, and the conduit will just be perhaps 1" inside of the exterior wall. So I doubt that one would consider that it would be in 2 different temperature areas. Thoughts?
 
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JDB3 said:
The house will have foam insulation, and the conduit will just be perhaps 1" inside of the exterior wall. So I doubt that one would consider that it would be in 2 different temperature areas. Thoughts?
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With foam insulation the attic will be closer to the temperature on the interior than it would be with standard insulation. It is probably overkill. I always spray foam all penetrations between the attic and the walls anyways; i would go ahead and put some foam in the pipe anyways. This makes it code compliant for sure. This is just my opinion.


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EMT fix

EMT fix

I suggest running the EMT back into the attic space and terminate it into a box. Switch over to THWN-2 and you'll be Code compliant for sure. Complete raceway system and rated wire.
 
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