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Subject Author Date
Running Wire inside basement walls p.k.ellis 12-13-2006
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Posted by on December 13, 2006, 4:24 pm


I have concrete block walls in my basement and instead of finishing the
walls with studs and drywall, I decided to simply chip out holes in the
block for the outlets and run the wire down from the top through the
walls. Before I do this to any outside walls, I want to make sure that
it's OK to do this. Will it affect my foundation at all to have a few
holes in the block? So far it's pretty easy and looks really nice once
you paint the walls and everything -- the best part is that I don't
have to worry about water damage to any walls if there should ever be
flooding!


Posted by hallerb@aol.com on December 13, 2006, 4:33 pm


i have done this, you may find some blocks here and then requiring more
holes, repair all well with mortar or concrete.

do realize at home resale time they will probably not count these room
as finished spaces, no insulation block wall etc.

probably the major downside to your plan


Posted by Goedjn on December 13, 2006, 5:11 pm


wrote:

>i have done this, you may find some blocks here and then requiring more
>holes, repair all well with mortar or concrete.
>
>do realize at home resale time they will probably not count these room
>as finished spaces, no insulation block wall etc.
>
>probably the major downside to your plan

Although, if you're punching holes in the blocks anyway,
you might as well dump some vermiculite in there which
will add something like R2 to the walls.

Posted by RBM on December 13, 2006, 5:02 pm


It may make more sense to run emt or wiremold on the exterior of the block,
but if you want to run cable inside the block you may need to use cable like
UF or other cable for wet or damp locations


>I have concrete block walls in my basement and instead of finishing the
> walls with studs and drywall, I decided to simply chip out holes in the
> block for the outlets and run the wire down from the top through the
> walls. Before I do this to any outside walls, I want to make sure that
> it's OK to do this. Will it affect my foundation at all to have a few
> holes in the block? So far it's pretty easy and looks really nice once
> you paint the walls and everything -- the best part is that I don't
> have to worry about water damage to any walls if there should ever be
> flooding!
>



Posted by Doug Miller on December 13, 2006, 5:32 pm


this)@optonline.net> wrote:
>It may make more sense to run emt or wiremold on the exterior of the block,
>but if you want to run cable inside the block you may need to use cable like
>UF or other cable for wet or damp locations

NM ("Romex"), NMC, and NMS are explicitly Code-approved "to be installed or
fished in air voids in masonry block or tile walls." [2005 NEC, Art.
334.10(A)(2), (B)(2), and (C)(2) respectively]

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

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