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2x8 insulation

DIYer88's Avatar

Join Date: Sep 2012
Posts: 1

09-21-12, 03:17 AM   #1  
2x8 insulation

New guy here, great site!

i have 2x8 ceiling joists in my kitchen, half is covered by the upstairs floor and half is open. would it be more benificial to use r-13 doubled up (v/b only to kitchen side) to fill the 7 in space, or just use r-19 and leave an inch open to the upper floor? tia


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EnvyThis's Avatar

Join Date: Jan 2009
Posts: 132

09-21-12, 08:04 AM   #2  
R19 will work and be less labor. Insulation should not be tight against roof and ceiling anyways. It should have some air space anyways.

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