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Old 11-30-2011, 02:50 AM   #1
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Double an outside wall inside

I was thinking about adding insulation to the outside walls of my house. Instead of tearing out the lath and plaster inside, and making a big mess, would it be okay to build a 2x4 wall over it all, adding a new vapor barrier? Someone said I would want to break holes in the old wall, but I don't know why. Would I be able to attach the top plate to the ceiling joists through the ceiling without tearing it out?


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Old 11-30-2011, 04:57 AM   #2
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You could do that--but why?

There are costs involved that make that idea impractical---Why not just remove the lath and plaster?


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Old 11-30-2011, 05:58 AM   #3
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Your location has a lot to do with it.....

If the climate is right....maybe use insulated vinyl siding? You could toss on sheets of 1" foam and then put the insulted vinyl on top of that.
Even if you are on the right track, you will still get run over if you just sit there.

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