cable in wall with Styrofoam and 1x3s

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  #1  
Old 12-21-14, 10:46 AM
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cable in wall with Styrofoam and 1x3s

I need to run nm cable down this wall.
Can I just cut notches through the 1x3s?
They're not supporting anything.
Wood planks go on top as the finishing
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  #2  
Old 12-21-14, 10:50 AM
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I don't know why not. Just use nail plates.
 
  #3  
Old 12-21-14, 11:00 AM
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They're not supporting anything
Actually it's furring strips holding up the paneling.
I think I would try to go behind the wood in the foam and still use a nail plate.
 
  #4  
Old 12-21-14, 12:34 PM
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So cut a long vertical section in all the Styrofoam?
Then put nail protectors only over the furring?
 
  #5  
Old 12-21-14, 12:48 PM
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I would just try to push the wire under/behind the furring. You may have to use a piece of stiff wire to create a channel. Definitely plates..... carefully installed.
 
  #6  
Old 12-21-14, 02:13 PM
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It's very tight. No room to push Styrofoam backwards
 
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Old 12-21-14, 02:37 PM
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Definitely don't cut the boards. Try your best to tunnel under the foam board or gyprock at the point of the cross 1x3's and run it under there. You can supplement what little insulation you have by spraying foam over the holes where the wires go.
 
  #8  
Old 12-21-14, 03:05 PM
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Why not cut the boards? They're probably nailed into studs anyway?
 
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Old 12-21-14, 03:11 PM
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Cut the boards! If they are over studs, you have a 3 1/2" cavity behind the insulation board. Unless they are nailed every 8" to concrete, you will have a weak spot. Since you are determined to do it, use mending plates to span across the gap instead of no-nail plates. You need to preserve the integrity of the boards. Simpson Strong-Tie 3 in. x 6 in. 20-Gauge Mending Plate-MP36 - The Home Depot
 
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