Is this an air barrier as well as a vapor barrier? I'm wondering if we need to use an additional air barrier like an Intello membrane below it if we use it over an unconditioned/vented crawl space.
QuietWalk Plus 100SF Roll
Adhesives and Underlayment
Status:
Open Mar 17, 2025 - 03:02 AM
1answer
Staff Answer
Mar 19, 2025 - 10:14 AM
It does not create an airtight seal. Actually air flow is encouraged to help prevent moisture buildup under the floor.
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QuietWalk Plus 100SF Roll
Zero VOC, floating floor underlayment with built-in sound and vapor barrier and no anti-microbials QuietWalk Plus underlayment improves a floor four ways: provides a patented system of moisture protection reducing mold and mildew smooths out little sub-floor imperfections quiets impact sound and flo...
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