Rim joist air-sealing options
We are using 2" of exterior polyiso foam with air-barrier established at the Zip sheathing. Our first choice in regards to the basement rim joist was to use closed-cell spray foam. Now I understand that we should avoid this "foam sandwich" but open-cell is an option due to its vapor permeability properties. Then I read more about foam and am a bit afraid of spray foam in general.
Since our exterior air barrier is the Zip sheathing, should I still be concerned about getting the air-sealing details perfect in this area? Any non-foam option seams like a ton of work for likely inferior results. Any thoughts or ideas appreciated.
Posted Sat, 05/04/2013 - 22:34
Other Questions in Green building techniques
Has anyone found a window that meets passive house standards and also carries an ASTM impact rating for the 110 mph zone?