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 ROBERTS Black Jack Underlayment is a solid choice for those looking to install vinyl plank flooring, particularly due to its efficient use of material and performance features. With a thickness of 2.5 mm, it provides a good balance of cushioning and sound reduction, making it suitable for both residential and commercial settings. The IIC and STC ratings of 70 and 66 respectively indicate that it effectively minimizes sound transmission, which is beneficial in multi-story homes or apartments. Its compatibility with radiant heated floors is a significant plus for users looking to maintain warmth in their living spaces.

A standout feature is the 600 sq. ft. roll size, which offers great value compared to purchasing smaller rolls. This can save time and money during installation, which is appealing to DIY enthusiasts as well as professional installers. The easy installation process, aided by the plastic overlap and adhesive strip, simplifies the setup further, making it a user-friendly option.

While the underlayment is designed for compatibility with vinyl plank flooring, some users might find its performance less optimal compared to specialized underlayments tailored exclusively for vinyl. Additionally, being a product primarily for sound absorption and cushioning, it may not provide the same level of moisture barrier as thicker options, which could be a concern in areas prone to high humidity. Ultimately, the ROBERTS Black Jack Underlayment serves well for those prioritizing sound absorption and affordability while installing vinyl plank flooring. However, for specific moisture concerns or if maximum performance is sought, exploring other dedicated options could be worthwhile.

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.