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Thread: What R-factor for duct
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06-22-2005, 09:25 PM #1
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What R-factor whould your recomend for duct in a Houston, Texas attic?
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06-22-2005, 09:39 PM #2
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Sorry, don't have my code book at home with me, or I'd tell you what the minimum code requirement is for your area.
Your contractor should know.
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06-22-2005, 10:17 PM #3
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Duct R-Value
R-6 should be Standard.
I suspect that R-8 duct would not be in common usage.Designer Dan
It's Not Rocket Science, But It is SCIENCE with "Some Art".
Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities
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06-23-2005, 01:10 AM #4
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R8 or more! the biggest $$ in the labor -- savings from now on --
be sure all joints & seams have mastic first!
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06-23-2005, 08:42 AM #5
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The highest you can find, period.
Lowes has foil-wrapped r-8 off the shelf.
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