
Project Source 100-sq ft 3.34-ft W x 30-ft L x 1 -mm T Standard Polypropylene Moisture Resistant Flooring Underlayment For Use Under Vinyl Plank,
Why is this any better then black 6ml plastic which is much thicker?
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A 6 mil moisture barrier is just that a plastic membrane that provides moisture vapor protection. Project Source 1mm LVP Underlayment provides moisture vapor protection, adds comfort underfoot including as a "thermal break" so you floor is not directly on the concrete and improves sound in rooms below.
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