Can you put vinyl plank flooring directly on the subfloor?

Author: Miss Lorine Auer  |  Last update: Thursday, May 29, 2025

If the vinyl flooring product you choose doesn't have an attached underlayment, you can almost always install directly over the subfloor without one.

Can you install vinyl plank flooring over a subfloor?

Subfloors are the surface that lies beneath your existing floor, providing support and stability. Subfloors must be clean, dry, level, and free from imperfections before any type of luxury vinyl plank flooring is laid down. That said, you don't necessarily have to remove your existing subfloor.

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

If unprotected, moisture can build up underneath your laminate flooring and cause warping of the planks.

Do I need underlayment for vinyl flooring on subfloor?

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 I put flooring directly on the subfloor?

If you're gluing the new flooring to the subfloor, use a sander to remove paint, oil, wax, adhesives, sealers or other material and then thoroughly vacuum off dust and debris. Nail-down or floating floors may be installed over existing vinyl as long as it's no more than two layers thick.

Do I Need Pad Under My Vinyl Plank? and 4 Other COMMON ?'s Answered

How flat does the subfloor need to be for a vinyl plank?

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. square footage – for areas less than 2500 sq. ft – minimum expansion space is ¼” areas larger than 2500 sq.

Do I need a moisture barrier under vinyl plank 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.

What is the best backing for vinyl plank flooring?

Choosing a vinyl flooring with rubber backing is ideal. Rubber features several properties that make it a quality choice for a long-lasting floor. Rubber is a strong option that can withstand heavy loads. It also offers valuable shock absorption that can help to make your floor more comfortable to walk on.

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.

Why does my LVP floor crackle when I walk on it?

When you walk on tile, you are pushing it down into the adhesive, and if the tile is not conformed, you are pushing it into contact with the adhesive which causes the clicking/crackling sound. To fix this, you can usually heat the area for at least a day, and then roll the tile using a 100-pound roller.

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 is there moisture under my vinyl plank flooring?

It's all caused because of the low vapor permeability of the LVF material combined with the building methods that allow for the presence of condensation buildup due to the transfer of humid air from warm to much cooler surfaces such as luxury vinyl flooring.

Does all vinyl plank flooring need to be glued down?

The good news is that, depending on the flooring you choose, you essentially have two choices on how to install your luxury vinyl flooring: glue down vs. floating.

Can you put LVP directly on plywood?

¼” plywood works well as a subfloor for vinyl, and you can install vinyl directly over wood.

Do I need to fill grout lines before laying vinyl plank flooring?

When you're laying LVP over existing tile, the grout lines are one of the first things you'll need to address. Grout lines can create a slightly uneven surface, and if not smoothed out, they might become visible through the LVP, creating an unsightly “telegraphing” effect.

What is the best subfloor for vinyl plank flooring?

The choice of underlayment for your vinyl plank flooring ultimately depends on your specific needs and the conditions of your space. However, experts often recommend foam or felt underlayment for their sound reduction, protection from moisture, and insulation properties.

Does the floor have to be perfectly level for vinyl plank flooring?

A flat and level floor is key so that the adjoining vinyl plank flooring doesn't have varying heights. It is absolutely essential that the subfloor is completely level.

What kind of plywood goes under vinyl flooring?

Cover the floor area with either a 4mm or 6mm plywood - the thickness selected should be determined by the quality of the surface being covered. Ply should be of suitable quality, eg SP101. Wood should be fixed using screws, twisted shank or ring shank nails, serrated or divergent staples.

How to fix uneven subfloor for vinyl plank?

Depending on the situation, you can either sand down areas of the subfloor that are too high, or install shims beneath the subfloor so that the entire floor is brought up to the same level.

What happens if you don't put a moisture barrier under vinyl flooring?

When moisture penetrates your flooring, it can cause mold, mildew, and the potential for water damage. A moisture barrier helps control the water vapor's movement to help protect your floors. Therefore, if you're installing floors in an area that sees moisture, even a little, a vapor barrier is needed.

How to prep plywood subfloor for vinyl plank flooring?

Your subfloor should be clean, rigid, level and free of cracks. Remove any carpeting or old vinyl flooring and temporarily remove the baseboard. If you are installing vinyl planks in a bathroom, you may need to temporarily remove the toilet, or you can install around it.

What backing is not good for vinyl plank flooring?

Rubber, both the natural and synthetic, is not safe to use with vinyl floors because it reacts with the chemicals found in vinyl and causes staining. Heat from sunlight or even the friction of foot traffic on rubber-backed rug pads causes this chemical reaction.

Do you need to leave a gap when installing vinyl plank flooring?

Luxury vinyl flooring is susceptible to slight expansions and contractions in response to changes in moisture and humidity levels. An expansion gap permits the flooring to adjust without distortion. Neglecting to incorporate this gap can lead to damage, particularly if the floor expands significantly.

Should you put a vapor barrier between subfloor and underlayment?

Yes. Hardwood flooring is quite sensitive to moisture and it's always worth adding a moisture barrier during installation. It is a necessity with concrete subfloors and damp areas, but water-resistive underlayments should be considered with other subfloors as well.

What voids the warranty on vinyl plank flooring?

Accidents, abuse or misuse; • Extreme heat or cold; • Scratching, impact or cutting; • Improper workmanship or installation not in accordance with Dezign North America installation instructions; • Improper maintenance; • Improper fabrication; • Freight damage; • Damages by acts of God; • Planks coming apart at the ...

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