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Old 11-11-2010, 06:53 PM   #1
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Pole building roof insulation


I am at odds with the way I should add insulation to the roof of my metal pole building. The roof already has the very thin backed insulation that you see in metal buildings. I use my attic and I want to insulate between the joist bays but have heard of moisture problems when adding backed insulation to the existing thin backed insulation. I want to keep the existing backed insulation were its at. Is it best to add unbacked insulation or is there another product that I am unaware that wont cause mositure problems?
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Old 11-11-2010, 08:14 PM   #2
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Pole building roof insulation


Spray foam and drywall covering or fire rated spray on covering.

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Old 11-12-2010, 12:19 AM   #3
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Pole building roof insulation


Closed-cell spray foam may indeed be your answer. If you do decide to use batts somehow, I would sure make sure there is plenty of ventilation between the batts and the roofing. And don't waste time w/ fiberglass. My 2 cents.
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