It is a process in which a non-toxic aerosol mist seeks out and plugs leaks in duct work. It is the ONLY duct sealant technology that is applied from the INSIDE of the duct system.
Since 1994. It was developed at Lawrence Berkeley National Laboratory.
Residential and Commercial duct systems.
Even temperatures in all rooms, reduced energy consumption, less stress on the HVAC system, seals leaks in ducts that are not accessible (hidden in walls etc.)
The application is warrantied for 10 years residentially and 3 years commercially. (Sealant and labor).
PBS-TV This Old House (season 12 episode 20), YouTube, HPAC (Heating, Piping, Air Conditioning) Engineering Magazine (March 4, 2013) and others.
Yes, however flex ducts need to be in good condition (no rips, tears, decay).
Typically only 1-2 ounces of sealant remains in the system after application.
On average 4 hours, depending on the size of the home and the necessary prep work involved.
Each project will be different depending upon the size of the building, access to the site, the number of HVAC systems present and the necessary prep work involved.
Reductions in duct leakage of up to 90% have been documented regularly.
Any duct work with more than 1/8” buildup of debris should be cleaned. Would you apply wax to a dirty car?