Re: Exhaust fan venting in powder room
Posted by CM on February 09, 19101 at 08:04:36:
In response to Re: Exhaust fan venting in powder room
I would avoid this if at all possible. The odors you arew venting could find their way back into your house under many conditions. And if you are in an area with freezing temperatures, you may be creating a moisture problem anyway as moisture condenses out of the warmer air as it hits the attic space. In any case, it is a code violation.

: Is there a problem with venting a powder room exhaust fan into the airspace in the roof joists, above the insulation? It would essentially vent thru the ridge vent. I know you wouldn't want to do this in a bath where you had a shower, which would create a lot of moisture in the air. Powder room only has a toilet and a lavatory, so fan will just be there to remove odors. Would venting in this manner cause excees condensation just from the inside warmer air being vented into the colder outside air that would be above the insulation?

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