FAQ's
On our faq page, you can find questions about flooring underlayment and floor heating systems. Get helpful information to assist with your purchase decisions and address any concerns you may have.
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The difference between QuietWalk and QuietWalk Plus is the attached film. QuietWalk Plus has a specialized film designed to accept nails and adhesives so it works with floating, nail-down, and glue-down installation methods of laminate and wood floors. QuietWalk is approved for floating wood and laminate only.
QuietWalk is not approved for use with luxury vinyl products. We recommend QuietWalk Luxury Vinyl for this application.
That is not an intended application, but there should be no issue to use QuietWalk under an area rug.
QuietWalk has only been tested and approved for use over a substrate, below a floating laminate or wood floor. We have not tested it for use between layers of plywood and cannot speak to the suitability.
QuietWalk is approved for a concrete subfloor under laminate flooring and has an attached vapor barrier. You shouldn’t need an additional vapor barrier unless the moisture vapor emissions of your slab exceed 5lbs/1000sf/24hrs.
All of the underlayments in our QuietWalk family of products would be excellent in this application. They are all approved for use over concrete and under laminate flooring.
QuietWalk is approved for floating applications only. QuietWalk Plus can be installed in a double glued application with engineered wood.
QuietWalk can be used below a floating engineered hardwood floor. If you are planning on stapling your engineered wood floor, you would need to use QuietWalk Plus.
SoundStep LV does have an integrated moisture barrier. The Perm rating for SoundStep LV is 0.14Perm. The WVTR (water vapor transmission rate) is 0.18lbs/1000sf/24hrs.
SoundStep LV does have an attached vapor barrier, which will offer water protection for your plywood subfloor.
SoundStep LV can be installed over existing sheet vinyl, provided the flooring manufacturer approves it as a suitable substrate. SoundStep LV is not approved for use with peel and stick tile. Please consider using an alternative flooring product, such as luxury vinyl tile or plank over SoundStep LV.