Answer
Sep 26, 2021 - 08:17 AM
Moisture Block is required ONLY for concrete subfloors. Wooden/Plywood subfloors do not require any moisture barrier (unless it is over a crawl space without any insulation or vapor barrier beneath).The waterproof cork installation guidelines go into more detail. Please read: https://www.greenbuildingsupply.com/core/media/media.nl?id=1932894&c=772072&h=M
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