Do you need underlayment for vinyl flooring on subfloor?

Author: Gayle Jacobi  |  Last update: Sunday, July 5, 2026

You may wish to use an underlayment with some additional cushion when installing vinyl flooring over a concrete subfloor. In addition, you may want one that provides some additional moisture protection, as well as some insulation. With concrete subfloors, a cushiony underlayment, such as foam or cork, is recommended.

Can you put vinyl flooring directly on a subfloor?

Yes, you can install vinyl flooring over a wood subfloor, provided the subfloor is clean, dry, and level. It is important to ensure that the wood subfloor is properly prepared and free of any moisture issues. A moisture barrier may be necessary to protect the vinyl from potential moisture problems.

What happens if you don't put underlayment under vinyl flooring?

When you have a bump or dip in your subfloor, the uneven surface can cause vinyl planks click-lock-systems to become uneven. This will cause creaking or “popping” every time you walk over the floor. An underlayment can help fill in subfloor imperfections and leave your flooring a smooth surface to lay on.

Do I need underlayment for vinyl flooring on plywood?

Vinyl flooring can go over a plywood subfloor without a vinyl flooring underlayment as long as the substrate is sturdy, smooth, and flat. If your plywood subfloor is in poor condition, you may need a thin plywood underlayment to smooth the surface out.

What vinyl flooring does not require underlayment?

If installing your luxury vinyl plank flooring over an existing vinyl floor or tile then you won't need an underlayment. This is because other vinyl may be backed by a cushion and tile can build the necessary level to prevent needing another layer.

Why You Need Underlayment For Your Floors

How do I know if I need underlayment for vinyl flooring?

If you're laying the LVP over an existing cushion-backed vinyl floor or a below-grade tile floor, you won't need to use an underlayment. However, you'll want to use one in every other application, including covering existing hardwood floors, uncushioned vinyl flooring, and concrete floors.

Does vinyl flooring with attached padding still need underlayment?

While vinyl flooring with an attached pad provides a basic level of cushioning and sound absorption, investing in a high-quality rubber underlayment like Dura Undercushions can elevate the functionality and longevity of your flooring.

What should I put down before laying vinyl flooring?

The most used types of underlayment for vinyl are cork, foam, felt, rubber, plywood, and OSB.
  1. Cork. When it comes to reducing noise in your home, cork is an excellent option. ...
  2. Foam. ...
  3. Felt. ...
  4. Particle Board. ...
  5. Rubber. ...
  6. Plywood and OSB.

What are the requirements for a subfloor for vinyl flooring?

Make sure the floor on to which your vinyl is being laid is smooth, flat and rigid. Ensure there are no cracks or gaps and that it is free of dust, grease, wax, paint and any other dirt, stains or contaminants. Obviously the cleaner and smoother you sub-floor, the better your vinyl flooring will look.

Do you need a moisture barrier under vinyl flooring?

Typically, moisture barriers are needed when vinyl flooring is installed on top of a concrete subfloor or crawl space. Please refer to the manufacturer guidelines, installation instructions, and warranty information for more details.

Should I put something under my vinyl flooring?

You may wish to use an underlayment with some additional cushion when installing vinyl flooring over a concrete subfloor. In addition, you may want one that provides some additional moisture protection, as well as some insulation. With concrete subfloors, a cushiony underlayment, such as foam or cork, is recommended.

Does floating floor need underlayment?

The answer will vary depending on the material used for the floor and the way that the boards are constructed, but, as a general rule, both Laminate and Engineered Timber floating floors do need some form of underlay to have optimal functionality and longevity.

Is felt or foam backed vinyl better?

Choosing between felt or foam-backed vinyl flooring ultimately comes down to personal preferences, alongside the specific needs of the space where it will be installed. Felt-backed vinyl offers an enhanced underfoot experience that's warm, comfortable, and forgiving of minor subfloor irregularities.

What goes between subfloor and vinyl flooring?

In essence, underlayment is a layer of material sandwiched between your subfloor and your finished flooring.

How do you prepare plywood subfloor for vinyl plank flooring?

Before installing the LVP, it's important to make sure that the subfloor is level and dry. Use a self-levelling smoothing compound to smooth them out. 2-3mm of smoothing compound will dry to walk on within 2 hours however will need at least 24 hours to dry sufficiently for the LVP to be adhered to it.

What is the best underlayment for vinyl flooring?

Felt underlayment is a popular choice for vinyl plank flooring due to its affordability and ease of installation. It is made from recycled materials and offers excellent noise reduction properties. Felt underlayment also provides a slight cushioning effect, making your floors more comfortable underfoot.

Can you put vinyl flooring directly on subfloor?

Generally speaking, LVP can be installed directly over subfloors such as concrete or ceramic tile assuming they're clean and level. Additional underlayment may be required if installing over existing hardwood or vinyl sheet floors to protect against moisture damage and sound transmission.

How smooth does the subfloor need to be for LVP?

Use the proper leveling compounds to provide a flat surface – subfloors should be 3/16” in 10' or 1/8”: in 6' – the use of a 6' level can help to determine the flatness of the subfloor.

What base does vinyl flooring need?

Foam: Being one of the least expensive underlayments you can buy, foam fits as the perfect choice to be put under your vinyl floor, especially if your subfloor is made of plywood. However, make sure that you have no moisture issues as foam and water aren't a good combination when it comes to flooring.

Do you need underlay when laying vinyl flooring?

Most vinyl floors don't need an underlay. If the surface you're laying on is level and smooth, a well-cushioned vinyl floor should be fine on its own. Our Luxury Vinyl Click flooring is laid using the same as technique as laminate options in that it's loose laid creating a "floating floor".

What does vinyl flooring sit on?

vinyl plank flooring in your kitchen or bedroom. You can easily install it over any rigid and level surface, including concrete, wood or even up to one layer of other vinyl.

Is underlayment necessary?

Even so, underlayment can only improve the overall quality of your floor—offering added stability, noise reduction, moisture protection, and comfort. So, while it might not be strictly necessary, we recommend using it if your budget allows.

What happens if you don't use underlayment with flooring?

Without underlayment to add a layer between these damp subfloors and the surface flooring, your laminate can quickly become wet, warped, and mildewy, harming its overall integrity. Moisture over time can also break down floor adhesive which causes the floor to start warping.

What flooring does not require underlayment?

Underlayment Not Required - Laminate Wood Flooring - The Home Depot.

Does foam backed vinyl flooring need underlayment?

When putting down vinyl flooring, it's important to use an underlayment. This is a layer of material that goes between the floor and the vinyl, and it serves a few purposes. It protects the flooring from damage. It helps to insulate and soundproof the room.

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