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Any better insulation than R13 for 2x4 walls when converting garage to fam room?

Any better insulation than R13 for 2x4 walls when converting garage to fam room?

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  #1  
Old 07-23-15, 12:20 PM
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Any better insulation than R13 for 2x4 walls when converting garage to fam room?

Are there any suggestions for a way to better insulate 2x4 walls in an attached garage that we want to convert to living space?

The "foam panels" I see in my local Home Depot (etc) don't seem better and are quite a bit more expensive. I haven't done any of the work yet - i.e. to rewire, add insulation, then drywall, etc. So the walls are 'wide open'.

We are in the Buffalo NY area, so a bit better than R13 would be helpful if reasonable.

Thanks!
 
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  #2  
Old 07-23-15, 12:32 PM
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Spray foam tends to be the best bang per inch but it does not come cheap.
 
  #3  
Old 07-23-15, 07:51 PM
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You can get r-15 if you are just looking for more r value.
 
  #4  
Old 07-23-15, 08:23 PM
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I believe Roxul is R15, doesn't itch, won't burn, impervious to water, and vermin hate it.
 
  #5  
Old 07-24-15, 04:13 AM
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A general practice is to fill with r-15 and then cover the entire wall with 1" of rigid foam. Adding the foam on the inside covers the studs but also requires adjusting electrical boxes along with window, floor, and door trim. But r-20 is probably your code requirement.

Bud
 
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