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TOPIC: Condensation Issues

aluminum pan roof

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I have two room aditions one 12x19 the roof is aluminum pans 6" below I have a drop ceiling. I have had a condensation problem. Recently I insulated and vented I did not put plastic up but the insulation has a vapor barrer on it.Should I put 4 mill plastic between the drop ceiling and the insulation? the other room I have is the same build but it is 25x25 with a closet and utility room built on one side with a full wall seperating them the smaller the room the less condensation builds i am wanting to insulste this room as well what would be the best procedure any help would be great. Thank you.
walter sawoscinski

12/30/2007
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You do need a vapor barrier. I also would say you need ventilation. As an alternative, you could have the back of the roofing sprayed with closed cell polyurethane insulation. Todd Miller
Todd Miller
Isaiah Industries, Inc.

12/30/2007
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