Do you need extra padding under vinyl plank flooring?

Author: Prof. Tyshawn Zboncak Jr.  |  Last update: Sunday, November 19, 2023

In short, vinyl flooring itself can be completely self sustainable and does not require an underlayment to function properly. Another reason underlayments may be suggested for vinyl flooring is if the vinyl flooring type is thin. When the vinyl flooring is thin, it becomes a lot easier to flex and bend.

Do you need additional underlayment for vinyl plank flooring?

If your planks already have a pad-attached underlayment, you most likely won't need an underlayment. However, if your flooring manufacturers installation instructions allow for an extra underlayment, adding an extra underlayment will provide improved sound reduction, insulation, and moisture protection.

Can you put extra padding under vinyl plank?

The rule of thumb is any vinyl over 4mm can have a vinyl specific underlayment. With thinner vinyl flooring construction, adding a foam underlayment can effect the locking system strength. Vinyl floors under 4mm should be installed right over the subfloor.

What happens if you don t put a moisture barrier under vinyl flooring?

Water vapor can cause serious damage to your home. For instance, if your flooring gets wet, it could cause mold and mildew, and even destroy your floor (source). No one wants that, so vapor barriers are there to help prevent the floor from getting wet.

Does plank flooring require underlayment?

Do I need an Underlayment? You may know luxury vinyl plank flooring can be installed directly over your existing flooring. This is where you determine whether you need underlayment or not. If installing your luxury vinyl plank flooring over an existing vinyl floor or tile then you won't need an underlayment.

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

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

Felt is a popular underlayment choice, offering better sound control than foam. With foam, you also have the option to choose an attached vapor barrier, and it provides better insulation than foam and cork.

Does luxury vinyl plank need vapor barrier?

95% of the time, they will recommend a 6-mil vapor barrier to be installed underneath the flooring. If you are concerned about noise reduction, we recommend for you to take a look at the QuietWalk LV as it offers the best Delta IIC rating in the industry.

Can vinyl plank flooring be installed directly on concrete?

Yes, vinyl plank flooring can be installed directly on concrete as long as the surface is clean and level. It is important to note that some manufacturers may require the use of a moisture barrier or adhesive during installation on concrete.

Can you put vinyl flooring directly on concrete?

How to lay vinyl flooring on concrete. As you don't have to install underlay for Vinyl Flooring or LVT, this can go directly onto the concrete subfloor. However, allow 24 hours for your flooring to acclimatise by leaving it out of its packaging.

What happens if you don t leave an expansion gap and vinyl plank flooring?

If the proper expansion gap is not left during installation, and the planks on the sides push up against the wall, the pressure will cause planks elsewhere in the room to buckle. Buckling floors are repairable, however, they are a major inconvenience and can be tricky.

Is vinyl plank flooring quieter than laminate?

In most cases, laminate is a more comfortable floor than vinyl. This is because it's thicker than vinyl, and often is installed over a foam underlayment. Vinyl flooring, on the other hand, is installed directly over the concrete subfloor, making it colder and harder than laminate. However, vinyl is a quieter option.

What is an acceptable gap in vinyl plank flooring?

The pass level for ASTM F 2199 is such that shrinkage of up to 0.024” / linear foot is considered a “pass”. This equates to a maximum allowable gap of 0.072” for a typical three foot plank, which is more than double the thickness of a credit card.

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

No. Rigid vinyl planks like Sound-Tec, Studio 12, and Foundations float over minor subfloor imperfections. They mask slight subfloor unevenness. However, because of the precisely milled clip system, a flat substrate is recommended for support.

Can I install vinyl plank flooring over uneven tile?

Moreover, if your floor is just slightly uneven, keep in mind that a vinyl plank over uneven floor can provide it with full coverage, as well as other sturdy materials. Not only do these types of materials give the floor the illusion of being more even than it really is, but they're also easy DIY flooring options.

How thick should vinyl plank underlayment be?

Since vinyl planks are generally thinner than a laminate, the underlayment is also thinner. If too much cushion is beneath the vinyl planks, the locking system and joint integrity will be compromised. Most vinyl underlayments are 1mm to 1.5mm thick.

Do I need a moisture barrier for vinyl plank flooring?

Pre-attached: Some vinyl plank flooring has a layer of underlayment already attached. In this case, the only type of extra underlayment required is a moisture barrier, if installing in wet areas or over concrete.

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

In short, yes. It's a misnomer that Luxury Vinyl Planks do not need a moisture barrier. If you are putting this type of flooring over your concrete and the contractor does NOT do a moisture, calcium chloride or RH test on your concrete, then they must put a moisture barrier down.

What are the disadvantages of luxury vinyl plank?

Firstly, it can be difficult to install and may require professional help. Secondly, vinyl plank flooring is not as durable as other types of flooring such as hardwood or tile. It is also prone to scratching and denting from heavy furniture or objects being dragged across the surface.

Is there a difference between vinyl plank and luxury vinyl plank?

Luxury vinyl is made more durable by its thicker wear layer is higher quality vinyl. On the off chance a a plank does get damaged, it can be replaced rather than replacing the entire floor. Standard vinyl flooring is expected to last about 10 years with higher quality brands lasting as long as 15 years.

What is the difference between luxury vinyl and luxury vinyl planks?

LVP vs. LVT. LVP comes in a plank shape and often offers the look of real hardwood with realistic scraping or embossing. LVT comes in the traditional tile squares, features more stone and concrete looks, includes surface texture for a lifelike look, and can even be installed with grout.

What is the minimum subfloor thickness for vinyl plank flooring?

When you install your vinyl on a wood subfloor, the top plywood should be a minimum of 1/4″ thick. For most subfloors, you will need to add an extra layer of wood. To do this, measure and cut the plywood to fit your room.

Why can't you use duo foam under vinyl plank flooring?

Unfortunately, adding insulating underlayment under vinyl flooring will cause the flooring to be unstable. Because vinyl flooring isn't made from wood products, it does not have the same structure that laminate flooring does.

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