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Thread: Ductwork
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03-23-2005, 04:55 PM #14
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I know this is late but here in great falls mt they have adopteed the international code witch calls out all duct must be sealed.
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03-23-2005, 05:24 PM #15
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Does it make a difference if the ducts are flex versus sheet metal?
All of the new construction I have seen locally seem to use round flex ductwork. In this area everything is a split system (gas heat) with the ductwork in an unconditioned attic.
Is there a sealant used for this flex ductwork?
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03-23-2005, 05:36 PM #16
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Originally posted by nathan9999
Does it make a difference if the ducts are flex versus sheet metal?
All of the new construction I have seen locally seem to use round flex ductwork. In this area everything is a split system (gas heat) with the ductwork in an unconditioned attic.
Is there a sealant used for this flex ductwork?
Yes,mastic is what is the best.
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03-23-2005, 07:33 PM #17
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Norm
About what you said - duct leakage
Can you be more specific, referring only to fabricated duct with s-locks & drives
Rate or percentage of leakage ??
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