Answer
Jan 13, 2021 - 01:00 AM
No. Per the installation instructions, IF you want to use an optional underlayment to improve acoustical properties it needs to be a breathable material, like cork (not vinyl)."OPTIONAL UNDERLAYMENT Amorim Wise cork complies with most residential acoustical standards by itself and does not require additional underlayment. However, to improve thermal or acoustical benefits, installing a dense underlayment that is 1/8" thick or less- such as cork, urethane, or other padding types that are breathable- can be done..."Installation Instructions : https://www.greenbuildingsupply.com/core/media/media.nl?id=1740812&c=772072&h=2
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