Answer
Jan 18, 2021 - 10:13 AM
The only requirement is a vapor barrier if your Waterproof Cork Floor is floated over concrete. If you are gluing your floor down a vapor barrier is not required. Additional underlayment is optional in either case - please see the installation instructions for additional information, located on the product detail page under downloads, direct link below for your convenience. https://www.greenbuildingsupply.com/core/media/media.nl?id=1740812&c=772072&h=2
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