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The Global Insight

Is underlayment required for vinyl plank flooring

Author

Andrew Campbell

Updated on April 21, 2026

The key to installing luxury vinyl over concrete is to ensure the floor is level and clean. Underlayment isn’t a necessity, but you might consider it to add noise reducing qualities or additional softness to the product. If the concrete is uneven, you will have to level it out.

Is underlayment necessary for vinyl plank flooring on concrete?

The key to installing luxury vinyl over concrete is to ensure the floor is level and clean. Underlayment isn’t a necessity, but you might consider it to add noise reducing qualities or additional softness to the product. If the concrete is uneven, you will have to level it out.

What do you put under vinyl flooring?

Installing underlayment in the vinyl areas supplies the elevation, smoothness and levelness necessary for the proper installation of vinyl floors. One common underlayment for vinyl floors is 1/2-inch particle board. It’s inexpensive, flat, smooth and bonds well to the vinyl adhesives.

What type of underlay is best for vinyl plank flooring?

  • FLOORLOT Blue Laminate Flooring Vapor Barrier Underlayment.
  • Roberts 70-193A Super Felt Cushion Roll Flooring Underlayment.
  • First Step 630-Square Foot Roll Underlayment.
  • Roberts 70-025 Qep 70-029 Unison Underlayment Polyethylene.
  • Best laminate 3-in-1 Flooring Underlayment.

Is a vapor barrier necessary under vinyl plank flooring?

Meaning, if you’re going to install vinyl plank flooring over tile, vinyl flooring, and even hardwood. As with the plywood floor, there’s no need to worry about a moisture barrier; the underlayment should provide cushioning and sound-deadening benefits.

Can vinyl plank flooring be installed over concrete?

Yes, and that’s one of the questions we hear most often is about luxury vinyl plank (LVP). Most homes in Florida don’t have basements so, rather than an actual concrete subfloor, the concrete is a slab-on-grade, meaning no basement floors and no walls.

Is underlayment necessary?

Underlayment for laminate flooring is a must. Since laminate is a floating floor, it must be evenly distributed across your subfloor. Underlayment is what allows the floor to float, gives it stability, support, noise reduction, and supports the locking systems in between planks to assure the sturdiest flooring project.

What is the purpose of underlayment for vinyl plank flooring?

Underlayment can improve the vinyl tile’s ability to absorb sound. It can also make the tile feel better to walk on and can prevent several problems from occurring.

Can I use laminate underlay for vinyl?

No, this is not possible. The main reasons for this are the difference in compressive strength and the thickness of the underlay. For a vinyl floor, you need an underlay with a high compressive strength, because the vinyl floor on top is soft and flexible.

Can vinyl flooring be installed over particle board?

While particleboard is actually only recommended for vinyl sheeting, vinyl tiles can be installed on it, provided the particleboard is sealed first. This prevents moisture from seeping between the tiles and causing the particleboard to swell over time.

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Can I use roofing felt under vinyl plank flooring?

The floor trim around the edges holds it all down. Floating floors can be installed over any existing hard floor surface, but should have an underlayment between the laminate flooring and the subfloor. You can buy laminate underlayment, but if you have a bunch of old roofing felt, it works just as well.

Do I need a vapor barrier and underlayment?

Mostly concrete subfloors transmit moisture. Concrete is porous and allows moisture to pass through to your basement/room level. … If the amount is more than what your underlayment can handle, then yes you will need a moisture barrier. If it doesn’t exceed the amount, then the underlayment can handle the job.

Can you put laminate flooring down without underlayment?

Some laminate flooring planks come with the underlayment attached to each plank. Underlayment is not optional. If your laminate planks don’t have it already attached, we recommend that you buy rolls of underlayment on which to install your laminate floor.

Can I lay laminate without underlay?

If you are installing the laminate flooring in an area that receives little attention such as a mudroom or laundry room, and you simply need to quickly install cheap flooring, laminate flooring can be installed without underlayment. The subfloor must be perfectly flat and featureless: no nails, screws, bumps, or dips.

What can be used as underlayment?

Plywood is only one type of underlayment. Other common types include cementboard or tile backer (used under ceramic or stone tile), foam underlayment (used under laminate and engineered wood “floating” floors), and rosin paper (used under solid hardwood flooring).

How thick should underlayment be for vinyl flooring?

How thick should underlayment be for vinyl flooring? In general, underlayment for vinyl plank flooring will be between 2mm to 3mm in thickness although some can be as much as 6mm thick and the thinnest around 1mm.

Does SmartCore pro need underlayment?

While most products sold by the best vinyl plank flooring brands have an attached underlayment, SmartCore does not. That’s not a problem in itself, and Lowes pairs a recommended underlayment with the product.

Does the direction of underlayment matter?

It is very important that the underlayment run the same direction as the flooring.

How do you prep a vinyl floor for subfloor?

Prep your subfloor so that it’s clean, dry and level within 3/16-inch change per 10 feet. Use a self-leveler on low spots and/or sand high spots of wood or concrete. Don’t sand vinyl flooring as it may contain asbestos.

Can you glue vinyl plank to OSB?

Bottom line is, flooring manufactures and even the OSB manufacturers’ do not recommend gluing vinyl sheet and tile flooring directly to these subfloor panels. A plywood underlayment should be installed between the structural subfloor of the actual foundation and the flooring material.

Can you use particle board as a subfloor?

Particleboard, which kind of looks like oatmeal, is comprised of small wood particles that are glued and formed into sheets. These boards, which are typically manufactured in 4″ x 8″ sheets, are not suitable as a subfloor. Structurally, they lack the strength and height needed for a hardwood flooring installation.

What can you use for underlayment for laminate flooring?

While there are a number of good options in the market, cork and foam are the usual favorites for a laminate floor underlay. Depending on your lifestyle, you may appreciate cork for its thickness and sound absorption; foam, on the other hand, is an excellent, cost-efficient material that works as a moisture barrier.

Do I need underlayment for laminate flooring over concrete?

Laminate flooring can be used immediately after installation. Laminate flooring can be installed over concrete, wood or carpet subfloor or other surfaces. Installation of good quality underlayment is highly recommended. Installing underlayment is easy but it has to be done precise to avoid any tears.

Can roofing felt be used under hardwood flooring?

Roofing paper should not be used under hardwood flooring. Due to its bituminous materials, it could begin to exude an unpleasant odor and even be toxic for your family. Instead, rosin or felt underlayment paper is appropriate.