Back in January, the City of Issaquah sponsored a weekend long class on retrofitting existing homes for better energy efficiency.  We did the classes in a real house in Issaquah, based on an actual retrofit of the home.  Yves Vetter with Vesta Home Performance managed the retrofit and is the star of the show.  Please check out this very informative video about the why’s and how’s of duct sealing – in this case a newer flex duct.

Duct sealing video from zHome on Vimeo.