According to insulated duct industry sources, around 50 percent of new homes were constructed using some form of insulated duct in 2000 and that percentage grew to 67 percent in 2011. Additionally, flexible duct annual sales are estimated to be in the $400-$500 million range, even in a severely depressed housing market, according to Ardee Toppe, president of Quietflex.
Toppe said, “No HVAC dealer wants to be tagged for installing a high-efficiency system that doesn’t deliver as promised due to a faulty air distribution system. Energy and performance audits are putting more emphasis on the vital role that the air distribution system performs in a central heating and cooling system.”