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Old 01-28-2010, 10:09 AM   #1
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I live in an old house that has cement tiles on exterior and plaster interior walls.
Would it be alright to put up another interior wall against original and insulate, and sheet rock, especially on north side of house to try and warm things up in winter?

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Old 01-28-2010, 11:39 AM   #2
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I live in an old house that has cement tiles on exterior and plaster interior walls.
Would it be alright to put up another interior wall against original and insulate, and sheet rock, especially on north side of house to try and warm things up in winter?
Is this the only alternative you came up with? Are there stud walls behind the plaster you could blow insulation into?
An additional stud wall is an option, but an inelegant one.
Ron

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Old 01-28-2010, 11:59 AM   #3
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Why are you trying to insulate an interior wall ?

Or do you mean build another wall against the exterior wall ?
I would take the inside plaster down & insulate
Adding another wall is not a good idea & just screams of a hack job

Look at the cavity space for rot, bugs etc
Upgrade wiring or run new outlets while the wall is open
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Old 01-28-2010, 03:31 PM   #4
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Yes there are studs behind plaster and yes it is an outside wall. I thought there could be a way to get a thicker wall for more insulation.
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Old 01-28-2010, 04:42 PM   #5
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Yes there are studs behind plaster and yes it is an outside wall. I thought there could be a way to get a thicker wall for more insulation.
Depending on your definition of "old", there might be no insulation in the wall now. You can check by removing an outlet plate and checking inside the wall next to it.
I have a house built in 1949 and there's 1" of cellulose sandwiched in between what could best be described as tar paper.
Ron
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Old 01-28-2010, 04:55 PM   #6
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If the existing walls are hollow (no insulation), you could tear off the old plaster walls - to the framework. Add framing to build the walls out to accomodate R-19 insulation (5-1/2"), then install new sheetrock/drywall.

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