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Old 10-23-2011, 10:07 AM   #1
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Insulation


We are building a new home in WV. My builder is installing R-38 insulation into 2x4 ceiling joists will it still have a R-value of 38 in 2x4's?

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Old 10-23-2011, 11:29 AM   #2
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Insulation


Is it R - 38 bats (rolled) between the the 2 X 4, ceiling joists?

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Old 10-23-2011, 11:44 AM   #3
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Insulation


If the bats are not installed right they will lose the r- value. Be sure the paper is on the condition space side and make sure you have barrier over them. You really need around R-48 in your attic. And seal them top plates in your attic and if you have any neewalls up there be sure to seal them up to.
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