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I still think plywood subfloors are better than OSB for most jobs
I was helping a buddy redo his basement last month down in Springfield, and he insisted on OSB because it's cheaper. We laid 50 sheets of 3/4 inch OSB, and by the third day three sheets had swollen at the edges from just normal humidity. I've used standard plywood on six different job sites over the past two years and never had that issue. Why do so many builders here push OSB when it's clearly less forgiving?
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jordan_young13d ago
Did you use proper vapor barrier under it?
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the_riley12d agoTop Commenter
Man I read this one post on a building forum where a guy said skipping the vapor barrier under OSB is basically asking for mold city. He had pictures of his floor swelling up like a sponge after a year. Definitely wouldn't skip it.
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