Cold Exhaust Fan Ductwork

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Old 11-04-19, 09:46 AM
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Cold Exhaust Fan Ductwork

My fan duct radiates a very noticeable amount of cold air from the attic. Can I build a wood box around this to seal it off or does that violate some kind of code?
 
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Old 11-04-19, 10:36 AM
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You can enclose it if you wish. I would get some rigid insulating foam or insulating blanket and wrap around it.
 
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Old 11-04-19, 11:18 AM
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Wrap it in the attic, too (and make sure it is vented all the way to the outside and not blowing air into the attic.)
 
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