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therompster 05-20-2011 11:24 AM

Attic mold? venting into attic?
 
2 Attachment(s)
I am trying to vent my very humid bathroom (that has no existing exhaust) somewhere. As of now i have to keep the windows open in the bathroom. If i want to vent into the attic (im in socal) is that ok? Also i have this picture here and i wanted to know if you thought this was mold or just aging?

bob22 05-20-2011 03:10 PM

White stuff in photos looks like chopped insulation and not a worry if that is what it is.
Bath vents should be ducted outside, not into the attic space or you will have moisture (and likely mold) issues in the attic.

therompster 05-20-2011 03:48 PM

I believe it is insulation but what about the black mark on the wood framing?

Quote:

Originally Posted by bob22 (Post 651606)
White stuff in photos looks like chopped insulation and not a worry if that is what it is.
Bath vents should be ducted outside, not into the attic space or you will have moisture (and likely mold) issues in the attic.


bob22 05-21-2011 06:42 AM

Could be surface dirt and not mold. I believe the test is to get some liquid bleach, e.g., Chlorox, on a q-tip and apply it to the black; if it disappears it is mold, if it just wipes off and stays black on the q-tip then dirt.

texasprd 06-03-2011 06:18 PM

Never vent it into the attic!! If you have soffit or roof-edge attic-intake ventilation, vent the fan through the roof - otherwise, some of the moisture will just be sucked into your attic through the intake ventilation (partially defeating the purpose).


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