Unconventional wall insulation


Old 09-14-07, 10:29 AM
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Join Date: Nov 2002
Location: Mass
Posts: 151
Unconventional wall insulation

I'm going to be insulating a wall that will need to have 2x3 scabbed onto the edge of the 2x4's so the wall will be 5 inches thick I know normally you would use r-11 or r-13 but in my case that will leave an inch and half space.

Could I instead use r-21 at 5 1/2 inches? Compressing 1/2 inch doesn't seem like alot and the little R i might lose will still be greater than r-11/13

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Old 09-14-07, 11:18 AM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 18,389

Check out a R19 that will fit for you

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