Talk of The Villages Florida - View Single Post - What to use to cover insulation in garage ?
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Old 07-31-2021, 09:18 AM
retiredguy123 retiredguy123 is offline
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Exterior wall insulation has a vapor barrier on the outside surface to prevent moisture penetration. If you create a second vapor barrier on the inside surface, you could possibly trap moisture between the two vapor barriers. So, if you use plastic panels, I would make sure that you don't sandwich the insulation between two vapor barriers.