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Old 10-02-2017, 10:40 AM   #16
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Re: faced or unfaced for this wall and ceiling


All this being said, it sounds like paper faced is the right solution for the attic floor insulation, correct?

Re-reading your post, i'm wondering if you were referring to insulating the roof rafters, vs insulating the attic floor/breezeway ceiling(I'm doing the latter)
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Old 10-02-2017, 11:11 AM   #17
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Re: faced or unfaced for this wall and ceiling


If the attic floor is properly air sealed, the vapor retarder level on the insulation is far less important.
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Old 10-24-2017, 05:03 PM   #18
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Re: faced or unfaced for this wall and ceiling


Seems a reply of mine may have gotten lost in the mix:

in the kitchen attic, it's a mess of old faced rock wool, should i take the time to clean it all out, or just lay unfaced r30 over it?

Similar situation in the main attic, old rock wool but newer comfort therm encapsulated r13 on top of it, just filling the 2x6 (maybe 2x8) cavities. Could r30 over all of it, but was concerned about those various vapor retarders currently in place. I understand that the old paper facing probably has degraded, but still, always looking for the experienced opinion on the matter.

cheers
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