Lowest budget air sealing solution for OSB seams – labor immaterial
Hi. I am in Zone 4a (Nashville area)
What are the very cheapest (material) solutions for air sealing OSB, that work excellent, even if more labor is involved. My labor is free, my billfold is thin.
I am building a workshop that will not be inspected; however, I want excellent air sealing.
I read Martin’s tape test articles. The Siga Wigluv is king with OSB, but I am looking at $700+ in tape if I go that route, unless it is cheaper by the case somewhere.
I got to thinking that perhaps a liquid applied sausage gun caulk or some other technology might be a good solution??
I also am thinking that I could make the air sealing layer the 2″ polyiso on the exterior, but I recall reading that it is best at the OSB level??
Anyways, thank you for your advice.
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