Brandon Whitmore Posted December 12, 2010 Report Share Posted December 12, 2010 Here's an EPA document that you may want to link to..... http://www.epa.gov/iaq/pubs/airduct.html And for Canada (CMHC) http://www.cmhc-schl.gc.ca/en/co/maho/g ... re_011.cfm Link to comment Share on other sites More sharing options...
Scottpat Posted December 12, 2010 Report Share Posted December 12, 2010 I'm of the no cleaning school, unless it is all metal duct work. This is a picture of some flex duct after it was cleaned! Click to Enlarge 57.57 KB Link to comment Share on other sites More sharing options...
Marc Posted December 12, 2010 Report Share Posted December 12, 2010 When I see dirt trails emanating from ceiling registers, I use boilerplate that says 'thoroughly clean or replace'. Marc Link to comment Share on other sites More sharing options...
Scottpat Posted December 12, 2010 Report Share Posted December 12, 2010 When I see dirt trails emanating from ceiling registers, I use boilerplate that says 'thoroughly clean or replace'. Marc That is not always a sign of a dirty air duct. The cool/warm surface around the duct acts like a magnet and attracts the grime in the air and it sticks around the registers. Same principle as "ghosting" that we see on walls and ceilings. Link to comment Share on other sites More sharing options...
Marc Posted December 12, 2010 Report Share Posted December 12, 2010 When I see dirt trails emanating from ceiling registers, I use boilerplate that says 'thoroughly clean or replace'. Marc That is not always a sign of a dirty air duct. The cool/warm surface around the duct acts like a magnet and attracts the grime in the air and it sticks around the registers. Same principle as "ghosting" that we see on walls and ceilings. I was referring to dirt trails on the ceiling finish itself that emanate outward from the register perimeter. Are we on the same page? Marc Link to comment Share on other sites More sharing options...
Terence McCann Posted December 12, 2010 Report Share Posted December 12, 2010 When I see dirt trails emanating from ceiling registers, I use boilerplate that says 'thoroughly clean or replace'. Marc That is not always a sign of a dirty air duct. The cool/warm surface around the duct acts like a magnet and attracts the grime in the air and it sticks around the registers. Same principle as "ghosting" that we see on walls and ceilings. I was referring to dirt trails on the ceiling finish itself that emanate outward from the register perimeter. Are we on the same page? Marc Actually it has more to do with poor housekeeping than dirty ducts. Link to comment Share on other sites More sharing options...
Scottpat Posted December 13, 2010 Report Share Posted December 13, 2010 I have to agree with Terry... Link to comment Share on other sites More sharing options...
Tom Raymond Posted December 13, 2010 Report Share Posted December 13, 2010 I recommend radiant heat.[] Link to comment Share on other sites More sharing options...
kurt Posted December 13, 2010 Report Share Posted December 13, 2010 Or mini split ductless. Ductwork is so yesterday. Link to comment Share on other sites More sharing options...
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