Can formaldehyde offgassing from OSB boards be deterred with Sheetrock and sealant?
I am planning to convert our newly built garage into a Tiny House. But, I have come to find that I have a real problem with the off gassing of formaldehyde from the OSB boards. I installed an ERV, the air exchange has been happening for several weeks now, but the fumes are just as troublesome. My next plan is to paint the boards with SafeCoat Safe Seal.
My question is can airtight sheet rocked walls and ceilings, prevent the formaldehyde from passing through, if the SafeCoat doesn’t hold it all in? And, should I put a plastic or some other material layer just under the sheetrock to help seal it?
Also, I had the garage tested for formaldehyde, the level is 0.011, which I’m told is high enough to attempt to mitigate.
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