Using old carpet for attic insulation


Old 10-20-00, 11:32 AM
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I have between 12 and 15 inches of blown in insulation in my attic. The insulation sits approximately 6-8 inches above the ceiling joists. I have also just removed all the carpet from my home. Instead of just throwing this carpet away, I was wondering if I put it in my attic, would it increase or decrease(due to compressing the existing insulation) my current insulating value.
I live in Tampa, Florida so I'm interested primarily in keeping the house cool.
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Old 10-20-00, 03:38 PM
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The weight of the carpet will compress the insulation and lower the "R" value that you now have (R-30 to R-38), plus it would act as something as a moisture barrier on top of your existing insulation, which would create problems for you.

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