Attic mold? venting into attic?

05-20-2011, 12:24 PM	#1
therompster Newbie   Join Date: May 2011 Posts: 2	Attic mold? venting into attic? 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? Attached Thumbnails

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05-20-2011, 04:10 PM	#2
bob22 Member   Join Date: May 2008 Location: Near Philly Posts: 1,955	Attic mold? venting into attic? 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.

05-20-2011, 04:48 PM	#3
therompster Newbie   Join Date: May 2011 Posts: 2	Attic mold? venting into attic? I believe it is insulation but what about the black mark on the wood framing? Quote: Originally Posted by bob22 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.

05-21-2011, 07:42 AM	#4
bob22 Member   Join Date: May 2008 Location: Near Philly Posts: 1,955	Attic mold? venting into attic? 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.

06-03-2011, 07:18 PM	#5
texasprd Member   Join Date: May 2011 Location: near San Antonio, TX Posts: 32	Attic mold? venting into attic? 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).