Luxury vinyl plank (LVP) flooring has become a favorite across South and Central Jersey homes for its durability, style, and comfort underfoot. But even the best LVP can only perform at its peak when paired with the right underlayment. While underlayment often hides beneath the surface—literally—it plays a major role in sound reduction, moisture protection, comfort, and long-term floor stability. Choosing the right one ensures the LVP looks beautiful, feels comfortable, and lasts for many years.
Below, we break down the most important factors so the home feels as polished and high-performing as the flooring itself.
Why underlayment matters more than homeowners think
Underlayment isn’t just “something that goes under the floor.” It supports the entire installation. The right material can:
Reduce noise between levels
Add softness and comfort
Offer moisture protection
Improve insulation
Help smooth out slight subfloor imperfections
Increase the longevity of the LVP
Skipping the correct underlayment—or choosing the wrong type—can lead to hollow sounds, clicking boards, moisture problems, and even early wear in high-traffic areas.
Understanding LVP: attached pad vs. no pad
Before choosing underlayment, it’s important to know whether the LVP already includes one.
LVP with pre-attached underlayment
Many modern LVP products come with built-in padding. These pads are designed to pair seamlessly with the plank’s locking system. They typically include sound absorption, basic cushioning, and minor moisture resistance. For most homes, this setup is already enough.
However, manufacturers often warn against adding a second layer of underlayment, because:
It may make the floor too soft
It can interfere with locking mechanisms
It may void warranties
Always check product guidelines before adding additional layers.
LVP without attached underlayment
If the LVP does not have padding, then choosing a standalone underlayment becomes essential. This is where options vary widely, and understanding the home’s needs becomes important.
Exploring the different underlayment types
Each type of underlayment serves a specific purpose, and the right choice depends on what the home needs most.
Foam underlayment for everyday comfort
Foam is one of the most common choices for standard LVP installations. It offers:
Light cushioning
Basic sound reduction
An affordable, functional option for many homes
Foam works well in rooms that don’t face heavy moisture, such as living rooms, bedrooms, and dining areas.
Cork underlayment for natural sound control
Cork is a premium choice for homeowners seeking better sound performance and natural insulation. It works beautifully for:
Second-floor installations
Townhouses and multi-level homes
Spaces that need a quieter, softer feel
Cork is eco-friendly, long-lasting, and resistant to mold and mildew. The one thing to remember: cork is not recommended for areas with moisture concerns unless paired with a separate vapor barrier.
Moisture-barrier underlayment for basements and concrete slabs
Homes with concrete subfloors, basements, or moisture-prone rooms need extra protection beneath their LVP. Moisture-barrier underlayment typically combines foam with an attached vapor barrier layer.
This type is ideal for:
Basements
First floors built on concrete
Rooms near water sources
Homes in humid climates
It prevents rising moisture from damaging the LVP or causing mold growth—an essential layer for South and Central Jersey’s seasonal humidity.
Matching the subfloor to the right underlayment
Not all subfloors behave the same, so underlayment must be chosen strategically.
For concrete subfloors
Choose an underlayment with a built-in vapor barrier
Look for mold-resistant options
Ensure the material is approved for use with LVP
Concrete tends to retain moisture, so protection is key.
For plywood or OSB subfloors
Foam or cork underlayment works well
Moisture protection is less critical
Ensure smoothness; plywood imperfections can transfer
Wood subfloors are more forgiving but benefit from cushioning and sound absorption.
Consider sound-reduction ratings (STC & IIC)
Homeowners living in multi-level homes or with active families appreciate quieter floors. Underlayment products often have two sound ratings:
STC (Sound Transmission Class): airborne noise (voices, music)
IIC (Impact Insulation Class): impact noise (footsteps, dropped items)
Higher numbers mean better sound performance. For second floors or attached homes, choosing underlayment with strong ratings can significantly improve everyday comfort.
The role of radiant heating systems
If the home uses in-floor radiant heat, make sure the chosen underlayment is compatible. Many foam and cork options work well, but some moisture-barrier materials may not allow heat to flow properly. Always check manufacturer guidelines on heat resistance and maximum allowable temperatures.
Create a smoother, quieter, more comfortable home with the right underlayment—reach out today!
The right underlayment transforms LVP from a great flooring choice into a truly exceptional one. It improves durability, comfort, sound, and overall performance. Each home is different, and choosing the best underlayment requires understanding subfloors, moisture levels, sound needs, and whether the LVP already includes padding.
At Aroma’z Home, we guide homeowners through every step—choosing underlayment, selecting premium LVP brands, and ensuring expert installation. Visit our showrooms in Cinnaminson, NJ and Hamilton, NJ, or contact our team today to get started with trusted flooring experts who proudly serve South and Central Jersey.
