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Old 03-16-2014, 08:12 AM   #1
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Insulated bathroom duct..after the fact...


We have 2 bathroom fans that vent through the attic and out the roof. They are both leaking water through the exhaust fans. I asked this forum and members say that the ductwork needs to be insulated. I'm not sure if its insulated. But if its not can i just wrap insulation (like roofing insulation) around the duct?

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Old 03-16-2014, 08:27 AM   #2
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Insulated bathroom duct..after the fact...


http://www.homedepot.com/p/Master-Fl...RP60/100152008

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Old 03-16-2014, 11:04 AM   #3
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Insulated bathroom duct..after the fact...


If you have some batt insulation, you can use that as well and cover with something like tyvek to prevent wind washing.
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Old 03-16-2014, 03:39 PM   #4
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Insulated bathroom duct..after the fact...


I would use these 6" duct sleeves. Split them with a utility knife, wrap them loosely around your existing exhaust ducts and tape the seams together with foil tape. If your exhaust ducts are smaller than 6" (4" bath vent, etc.) just overlap the seam slightly when taping the sleeve back together. We use it successfully often.

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