I might just get it to add in the attic on top of the R19 as an extra layer in the attic, its only 3 1/2 more inches but the price makes it hard to pass up and im thinking that should bring the attic up to R30. just have to peel the facing off it first.
thanks for the advice guys and I wasn't aware they had R15 so i'll look into finding some of that. after all, if your going to do it, do it once and do it the right way.
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