10 Best Underlayment For Vinyl Plank Flooring Vapor Barrier 2025 in the United States

The QuietWalk LV Underlayment offers a solid choice for anyone looking to install luxury vinyl, laminate, or wood flooring. One of its standout features is the superior sound reduction; made from recycled fibers, it effectively absorbs sound, ensuring a quiet environment, which is particularly beneficial for multi-level homes or apartments. Additionally, the compression-resistant material supports the seams of your flooring, making it durable against constant foot traffic.

Moisture protection is another strong point, with the unique DriWick technology allowing concrete subfloors to breathe. This feature prevents moisture vapor from getting trapped, safeguarding your flooring from potential damage. The attached vapor barrier adds another layer of protection, making it suitable for both concrete and wood subfloors. Plus, it's compatible with in-floor radiant heat systems, which is a bonus for those looking for added comfort.

In terms of compatibility, this underlayment works well with various installation methods—floating, glue-down, or nail-down—making it a versatile option for different flooring types, especially those that are at least 4mm thick. The product is also certified for clean indoor air quality, which means no unpleasant VOCs or off-gassing, a great feature for health-conscious consumers. However, the QuietWalk LV may be a bit bulkier at 30 pounds and 6 feet in length per roll, which could be cumbersome for some users during installation. Additionally, while the sound absorption properties are impressive, some may find that it doesn’t completely eliminate noise in very high-traffic areas.

The Bestlaminate 3-in-1 Vapor Barrier Underlayment is designed to enhance your vinyl plank flooring experience, particularly if you're looking for sound absorption and moisture protection. With a thickness of 2mm, it provides a decent cushioning effect and a vapor barrier that helps protect against moisture from the subfloor, making it suitable for both wood and cement surfaces. The pre-attached self-sealing tape strip simplifies installation, ensuring a secure fit that can save you time and effort. Plus, the environmentally friendly packaging shows a commitment to sustainability, which is a plus for eco-conscious consumers.

While 2mm thickness is generally acceptable, some users may prefer thicker options for enhanced sound insulation or comfort underfoot.

This underlayment is a good choice for those looking for a reliable vapor barrier and sound absorption for vinyl plank flooring, but if you are after maximum thickness or specialized features, you might want to explore alternatives.

The FLOORLOT BlueStep Underlayment is a versatile option for those looking to protect their floors from moisture and reduce noise. Its 3-millimeter thickness provides a good balance of cushioning, helping to smooth out minor imperfections in the subfloor. This underlayment includes a built-in moisture barrier, which is essential to protect your floors from subfloor moisture without the need for additional films.

The sound absorption is standard, effectively quieting sounds from foot traffic, which can be a significant benefit in active households, reducing the hollow sound often associated with floating floors. Installation is straightforward, as the product is easy to roll out, and the seams can be connected with the included tape, making it a user-friendly option.

This underlayment is primarily designed for laminate and wood floors, including engineered wood and solid hardwood. The blue-colored foam material is durable and provides additional thermal insulation, which can increase comfort.