Do you need a vapor barrier 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.

Do you need a vapor barrier under vinyl plank flooring on concrete?

Vinyl floors under 4mm should be installed right over the subfloor. If you have any areas on a concrete subfloor with moisture concerns, it is recommended to use a vapor barrier underlayment that will not add any cushion to the planks.

Do you need to put anything under vinyl plank flooring?

The only time we suggest underlayment under vinyl tile or plank flooring is if want to reduce the impact sound or sound transmission in your room. The additional underlayment under the floor will help to reduce the sound.

What type of underlayment do you use for vinyl plank flooring?


Rigid Underlayment

Plywood is often the most commonly used type of underlayment in vinyl plank flooring installation. Sheets of 4×8 foot plywood, usually ¼ to ½ inch thick tend to be an excellent flooring underlayment for many subfloors including wood, tile, and linoleum.

Can mold grow under vinyl plank flooring?

Although vinyl plank flooring is well-known to be waterproof, it does not mean that liquids can seep through the cracks, grooves, or edges and become trapped under the planks, allowing mold to grow underneath your floors.

Do you have to put a moisture barrier under laminate flooring?

No matter which underlayment you choose, if you are installing on a moisture prone subfloor or concrete subfloor, you really need a moisture barrier underlayment. Protect your laminate flooring from moisture for years to come by installing moisture barrier underlayment.

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How do you install moisture barrier under vinyl flooring?

Quote from the video:
Now we're just going to go ahead and roll out our vapor barrier across the floor and putting some staples along the side of the wall as we. Go. Now on this vapor barrier we actually have a tape.

What are the disadvantages of vinyl plank flooring?

Some disadvantages of vinyl flooring include:

  • Cannot be repaired.
  • Can emit volatile organic compounds (VOCs)
  • Shorter lifespan than wood floors.
  • No impact, or negative impact, on home resale value.
  • Difficult to remove, especially if adhesive is used during installation.
  • Not eco-friendly; difficult to recycle.

Can vinyl plank go on 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.

Can vinyl flooring go on concrete?

Generally speaking, you can install vinyl tile directly over concrete, provided there are not any serious problems with the concrete floor. Any concrete floor used as a subfloor for vinyl tile must be clean, dry, and smooth. If there are any cracks or holes, they must be repaired first.

How do you prepare a concrete floor for vinyl planks?

Prepare the subfloor

  1. Repair cracks and holes. Inspect the floor and repair cracks, pits, holes, or other uneven patches. …
  2. Grind imperfections. The surface must also be as smooth and flat as possible. …
  3. Wash the floor. Wash the concrete floor thoroughly using water and household detergent or degreaser.
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How flat does a concrete floor need to be for vinyl plank?


If you’re installing vinyl planks on top of a concrete floor, the standard tolerance required is for the floor to be level to 3/16” within a 10′ radius. It also can’t have a dip of ⅛” within 2′. Level means that a floor doesn’t slope in any direction.

Do you need to seal a concrete floor before laying vinyl flooring?

You don’t need to seal a concrete floor before installing laminate; however, to prevent moisture from the concrete floor from affecting your laminate, install a vapor barrier of polyethylene film. Install this barrier even if the concrete subfloor is covered by vinyl, linoleum, terrazzo or ceramic tile.

Do vinyl floors need to be sealed?

Many vinyl tile floors don’t need sealing since the tiles line up against each other perfectly, but doing so can help increase the lifespan of your flooring. So for anyone who’s thinking of trying, here’s our guide to how to seal a vinyl tile floor to explain how it’s done.

What do you put around the edge of vinyl flooring?

Quote from the video:
It's very straightforward. You want to just cut a very fine angle off the end of your silicon nozzle.