Is moisture barrier carpet padding worth it?

Carpet padding is an important part of protecting your floors and prolonging the life of your carpet. A moisture barrier carpet padding will help to protect your floors from water damage, spills, and pet accidents.

If you live in a high-moisture area or have pets, this type of carpet pad is definitely worth considering.

However, there are a few things to keep in mind when choosing a carpet pad with a moisture barrier, which we shall talk about in this article.

moisture barrier carpet padding

What is moisture barrier carpet padding?

A moisture barrier carpet pad is a type of underlayment that is designed to prevent moisture from seeping into your carpet.

Moisture barrier pads are typically made from a waterproof material, such as vinyl, polyethylene, polyurethane, or rubber, and they can be applied directly to the subfloor before your carpet is installed.

They help to protect your carpet or floor from water damage, mold, and mildew since the padding is designed to prevent moisture from seeping into your carpet.

For this reason, this type of carpet pad is very useful in areas where there is a lot of moisture, such as basements and bathrooms. Hence, they are a good alternative to normal rug pads.

Benefits of using a moisture barrier padding for your floor

A moisture barrier carpet pad can be beneficial in many situations.

1. Protects the carpet from mold

One of the main benefits of a moisture barrier is that it helps to keep your carpets dry, which can help to prevent mold from growing.

Mold can be a big problem, especially in areas with high humidity levels, so it’s important to take steps to protect your carpets from it.

If you live in an area with high humidity levels, consider using a moisture barrier pad to help keep your carpet from becoming musty and mildewed.

2. Prevent spills from sinking into the floor

A waterproof carpet pad can help to prevent urine stains and odors from sinking into your floor.

It is particularly important if you have pets or small children who are prone to accidents.

3. Extends the life of your carpet

There is no doubt that a moisture-proof rug pad will help to extend the life of your carpet and floor.

This is because the padding is usually strong and thick enough to protect the carpet against wear and tear.

4. Keeps wood floor from rotting

When wood gets wet, it starts to swell and then rot. That’s why it’s so important to have a moisture barrier between your flooring and the outside world – to prevent water damage.

Carpet padding with a moisture barrier will help protect your hardwood floors from water damage, and as a result, will help them last longer.

Examples of a moisture barrier rug pad

  • RUGPADUSA SpillTech Scotchguard 3M Rug pad moisture barrier

RUGPADUSA rug pad is a moisture barrier padding that is great for preventing spills and pet “accidents” from reaching your floor.

It contains “Odor Eating” enzymes to help dissipate any residual smell after cleaning up, and they’re also made with comfortable rebound visco-elastic memory foam cushioning your rug with a full 3/8″ pile.

  • Carpenter Spillguard Dupont Barrier Rug pad

The Carpenter Spillguard Dupont Barrier Rug pad is thick padding that is made from hypoallergenic and ozone-friendly visco-elastic memory foam.

It features a renewably sourced moisture barrier film from DuPont that protects the carpet from moisture damage.

The Spillguard moisture barrier prevents spills and accidents from penetrating the cushion, so they can be blotted from the rug quickly and easily.

How to choose carpet padding with a moisture barrier

In order to choose the best rug pad for your needs, you’ll need to consider a few factors.

  • Thickness

The thickness of the pad is very important as you’ll want to make sure the pad is thick enough to provide cushioning and support.

  • Material

Consider choosing a material that is durable and moisture-resistant.

Most carpet padding with a moisture barrier is made of memory foam since it’s able to retain its shape and firmness even when exposed to moisture.

This makes it ideal for use in areas where there is a risk of spillage or exposure to water.

You can however find rug pads made of rubber or vinyl though they might not be as effective as those made from memory foam.

  • Density

The density of the padding is also important since it determines how firm the pad will be.

Consider choosing a rug pad that’s dense enough to provide support without being too firm.

How to install carpet padding with a moisture barrier

There are many ways to install carpet padding with a moisture barrier.

Here is one way:

1. Decide where you want to install the carpet padding. You’ll need to know the dimensions in order to choose the right size for the padding.

2. If you are installing it in a room that already has a floor, measure the dimensions of the room and add at least 2 feet to all sides so that you have enough material to work with.

3. Cut the padding to fit the desired dimensions of the room. You can use a sharp knife or scissors for this job.

Make sure all the edges are straight so that the pad will fit snugly against the walls and under the furniture.

4. Lay the padding onto the floor making sure it lays down flat without buckling up. Also, remember the moisture barrier padding side should go up to prevent spills from sipping through to the floor.

5. Place your carpet or area rug.

Drawbacks of using a moisture barrier rug pad?

There are a few potential drawbacks to using a moisture barrier rug pad.

First, they can be typically more expensive than other types of rug pads.

Also, they don’t absorb spills, so if you have a spill on your rug, it will just sit on top of the pad and could potentially damage your carpet.

In addition, moisture barrier rug pads can make it more difficult to clean your rug since the spill will just sit on top of the pad.


If you’re considering getting a moisture barrier carpet padding, the answer is yes, it’s worth it.”

This is because it protects your carpet from spills and accidents. We’ve all had that moment where we realize we’ve spilled something on the floor only seconds too late. With this padding, you won’t have to worry about stains ruining your carpet.

Also, it helps prolong the life of your carpet by protecting it against wear and tears. It does this by providing an extra layer of cushioning.

Regarding how thick or dense the pad should be, consider factors such as the type of carpet you have, the climate where you live, and how much foot traffic your carpet experiences.