Best way to air seal an attic?
Just had a BPI Energy Audit and was told that they would use 1 inch of CC spray foam to air seal the attic floors and then blow in 15 inches of cellulose. Is this the best way to air seal and attic floor? Is it the most cost effective? There are ducts and an air handler in one attic space and just ducts in the other. The house is in Zone 4. Thank you.
Posted Thu, 03/27/2014 - 09:34
Edited Thu, 03/27/2014 - 10:06
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