According to the Department of Energy, sheet metal duct work is responsible for up to 20% to 40% of energy loss in homes (and fiberglass is poor alternative due to its carcinigenic nature). KoolDuct is a fiber-free foam-based alternative to sheet metal. Why aren't more people in the United States taking advantage of this?
Green Alternative to Sheet Metal
Green Alternative to Sheet Metal
(via www.gomech.com)
Submitted by Fran on Sun, 2008-02-03 03:38. | Tags: architecture | construction | HVAC | sheet metal
Department of Energy link
Just in case you are interested...Department of Energy report is located at the following: http://www.eere.energy.gov/buildings/info/documents/pdfs/27630.pdf