How to Move Air Quietly Through a Duct System

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At my first Building Science Summer Camp in 2011, David Hill gave a great presentation on some of the big problems with duct systems. (In case you weren’t reading this blog back then, I got myself invited with my 2010 article called I Don’t Need No Stinkin’ Building Science Summer Camp.)

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[source: http://www.greenbuildingadvisor.com/articles/dept/building-science/how-move-air-quietly-through-duct-system]