QuietWalkLV 100 Sq Ft Luxury Vinyl Underlayment - Sound & Moisture

Our review of QuietWalkLV 100 finds it best suited for homeowners and installers fitting luxury vinyl plank, rigid core, SPC, WPC, laminate, or engineered wood flooring 4mm and thicker who want an integrated sound and moisture solution. The single biggest reason to choose this underlayment is its combination of high-performance sound absorption with a built-in 6-mil vapor barrier and patented DriWick moisture-wicking technology, which together protect floors from subfloor moisture while noticeably reducing impact noise for a more comfortable room.

Key Features

• Compatibility: Designed for floating, glue-down, and nail-down installations, it supports LVP, LVT, SPC, WPC, rigid core, laminate and engineered wood floors 4mm or thicker for broad project use.
• Sound reduction: High-performance recycled fibers absorb impact sound, reducing noise transfer between rooms and improving overall home comfort.
• Moisture protection: Patented DriWick technology plus an integrated 6-mil vapor barrier helps wick and block subfloor moisture to protect finished flooring from water damage.
• Compression resistance: Dense fiber construction prevents permanent compression under heavy furniture and high foot traffic, maintaining floor stability over time.
• Eco credentials: Made from 100% recycled synthetic fibers and GREENGUARD Gold Certified, it contributes to healthier indoor air quality with zero VOCs.
• Installation ease: Lightweight and flexible with built-in tape for quicker seams, it trims easily for DIY installers and small renovation projects covering 100 sq. ft. per roll.

Who It's For

QuietWalkLV 100 is aimed at homeowners, remodelers, and small contractors completing single-room installs or multiple small rooms where sound control and moisture protection are priorities. It is especially useful when installing LVP or SPC over concrete or other moisture-prone subfloors, and when paired with in-floor heat systems since it is radiant heat compatible.

Those who need wall-to-wall coverage for large commercial projects or require thicker acoustic performance for multi-family or high-noise commercial spaces should look for higher-coverage or heavier commercial underlayments tailored to those demands.

Pros & Cons

Pros

• Effective impact noise reduction that customers report as noticeably improving room comfort.
• Built-in 6-mil vapor barrier and DriWick moisture-wicking technology provide reliable moisture protection for sensitive floor types.
• Eco-friendly manufacturing with 100% recycled fibers and GREENGUARD Gold Certification supports healthier indoor air quality.
• Lightweight and easy to trim and install, which users praise for ease of installation and included seam tape.

Cons

• Covers 100 sq. ft. per roll, so multiple rolls are needed for larger jobs which can add handling and seam management time.
• Not intended as a replacement for very thick commercial acoustic underlayments where extreme sound isolation is required.

Specifications

Coverage	100 sq. ft. per roll
Compatible floor types	LVP, LVT, SPC, WPC, rigid core, laminate, engineered wood (4mm+)
Vapor barrier	Integrated 6-mil vapor barrier
Material	100% recycled synthetic fibers
Moisture tech	Patented DriWick moisture-wicking technology
Certifications	GREENGUARD Gold Certified, zero VOCs
Radiant heat	Compatible with QuietWarmth and other in-floor heating

Our Verdict

QuietWalkLV 100 is a strong value for homeowners and small contractors who need a reliable underlayment that combines sound reduction, moisture protection, and eco-friendly materials. It performs well under LVP and similar floors, installs easily for DIYers, and helps preserve floor life; larger commercial projects requiring heavier acoustic isolation should consider alternate options.

Frequently Asked Questions

Can this underlayment be used with in-floor radiant heat?
Yes. QuietWalkLV 100 is compatible with QuietWarmth radiant heat systems and other in-floor heating solutions.

Is the underlayment moisture resistant for use over concrete?
Yes. It has patented DriWick technology plus an integrated 6-mil vapor barrier to wick and block subfloor moisture.

Will it reduce impact noise under luxury vinyl plank?
Yes. The recycled fiber construction provides noticeable impact sound absorption and a cushioned feel underfoot as reported by customers.