Least Expensive Air-Sealing Method for OSB
Hi. I am in zone 4a (Nashville area).
What is the cheapest effective option abailable for air sealing OSB seams and OSB to Concrete seams?
I am not looking to save labor. I am looking to save money. So installation ease is not a priority.
I thought a sealant caulking or 5 gallon bucket might be the best bet. I also have seen images of the liquid sealants that show a width of a couple inches on OSB seams and it confuses me. I figured with a 1/16″ or 1/8″ gap that a 1/2″ wide sealant would more than suffice? For that matter, the tapes such as zip are about 4″ and I wonder at the need for so much width?
I acquired a whole bunch of repurposed 3’x8′ 7/16″ OSB a few months back for $3 a sheet and am using it for my house and shop.
I much appreciate your advice.
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