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Old 11-07-2013, 08:32 AM   #1
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crawl space insulation


I need to insulate a vented crawl space but I keep getting different opinions about whether to use faced or unfaced insulation between joist. I thought unfaced since it's ventilated. I'm in central NJ. Thanks

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Old 11-07-2013, 09:04 AM   #2
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crawl space insulation


I'd be using faced with the barrier toward the sub floor.

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Old 11-08-2013, 09:14 PM   #3
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crawl space insulation


If in Zone 4, not required, IF solid wood subfloor and in Zone 5, use faced towards heated area. IF plywood/OSB, not required as they have they same vapor perms as faced...http://www.buildingscience.com/docum...commendations/

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