View Full Version : duct board
12-21-2004, 02:24 PM
can yo do anything to treat ductboard for mold once installed?
01-14-2005, 11:58 PM
Yes and No and mostly no.
IF, a very big IF, you can clean the duct. (rotarary brush will damage the board as will and air whip) but a straight air nozzle with no whip will also remove MOST of the dreaded mold. Then it can be coated with any one of sevearal sealers and fungacides (like Fosters').
01-15-2005, 10:27 AM
Hmmmmmmmmmmm, thought Fosters was Austrailian for Beer not sealer and fungicides. Them Aussies think of everything lol
01-15-2005, 11:42 AM
yes..yes you can treat it. remove it V-E-R-Y carefully and take it to the curb where smash the living crap out of it and replace with some fancy cleanable metal.
sorry.......couldn't resist. i'm weak.:D
01-15-2005, 06:44 PM
Don't forget to tell them to insulate with wrap, not liner, or you get the same problem when you do try to clean it.
01-15-2005, 09:16 PM
listen to bldgcode1....he speaks the truth.
01-15-2005, 09:40 PM
many thanks, and may the admiration of the fleas of a 1000 camels turn their attention to your most hostile associate.
01-15-2005, 09:44 PM
mmmmm, thats one heck of a curse you have there...
01-16-2005, 12:50 PM
Your a/c either has wet cold air blowing through it or saturated wet from the wet a/c cool throughout the summer. This ideal for mold growth. To prevent mold growth in your a/c ducts, fiberglass or metal, dry thoroughly a couple hours every day. This requires <50%RH air inside your home. Operating your fan for two hour each day when the a/c is not operating is one way. Another method is to discharge the output from a whole house dehumidifier into the a/c supply duct. The units blow 200-300 cfm of dry air. Warm dry air will dry the a/c ducts dry enough during the "off cycle time" to avoid mold growth.
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