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Old 06-28-2012, 12:31 PM   #1
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Rigid Foam on attic floor?


I need extra insulation in my attic which is a cold space, I was thinking of putting down the rigid foam on the floor surfaces and screwing it into the sub floor to help boost the insulation. Does anyone know if this is a good option..

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Old 06-28-2012, 01:34 PM   #2
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Rigid Foam on attic floor?


I must be covered with a proper thermal barrier in most cases and why use rigid foam where blown in cellulose would work just fine?

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Old 06-28-2012, 03:01 PM   #3
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Rigid Foam on attic floor?


+1 with WOW...go with a blow-in or batt. product and you can cover it all with a tyvek like material (class III vapor retarder MAX.) to help mitigate air movement through the fibers. It is cheaper too!
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Old 06-29-2012, 01:11 AM   #4
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Rigid Foam on attic floor?


1. Where are you located?

2. Is there HVAC in the attic?

3. Do you plan on storing household goods up there?

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