28 Nov '12, 12pm

Should Flex Duct Be Banned? #green #energy

Should Flex Duct Be Banned? #green #energy

Mike MacFarland, a home performance contractor in California, had some of the best advice I’ve seen for using flex. He wrote in a comment to one of my recent flex duct articles , “The trick to getting these installation right is to use rigid ductwork for all ‘deviations from straight,’ then pull the ductwork taut between the two ends which now point towards each other.” So if we’re going to ban something about flex duct, it should be banning it for changing the direction of air flow. I could almost get behind that. I do believe that long, gradual turns aren’t so bad, as long as the inner liner is pulled tight and the duct is properly supported.

Full article: http://www.greenbuildingadvisor.com/blogs/dept/building-s...

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