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What You Need To Know About Underlayment For Your Laminate Flooring

When you install a laminate floor, it's a good idea to put the right underlayment underneath. At, underlayment options for every laminate floor appear on the product page.

There are three main reasons for using an underlayment:

  1. Noise Reduction: you can use an underlayment to reduce the transmission of noise and footsteps through the floor to the room below. Underlayment will also minimize the hollow sound of footsteps from people walking across the room.
  2. Moisture Protection: you can use an underlayment to protect your laminate floor from moisture or water damage seeping up through the subfloor.
  3. Temperature Insulation: you can use an underlayment to prevent the loss of heat or cold into the space below the floor. Underlayment can also be used to prevent heat or cold rising up into the room from the space below the floor.

An underlayment also smooths over minor imperfections in the sub-floor beneath, and minimizes movement of your new laminate floor. Laminate floors are floating floors, which means that they are not permanently attached to the sub-floor. So an underlayment is rolled out and attached to the sub-floor first. Then, the laminate flooring is assembled on top. The individual laminate flooring boards are connected to one another by simply snapping together. No glue is used, and the installation work is quick and clean.

Laminate floor underlayments may be constructed of foam or urethane, natural or synthetic fiber, cork rubber or any combination of materials. It's a good idea to use one of the underlayment options offered or approved by the manufacturer of the laminate flooring you're buying, rather than a generic underlayment.

Categories of laminate floor underlayments

  1. The most common underlayment is 1/8" thick standard foam. It provides minimal sound dampening and insulation, and does not create a moisture barrier. If you are installing laminate flooring over a wood or concrete sub-floor that is above ground level, the standard foam may be sufficient. (Many condos have specific noise reduction standards, so be sure the underlayment you choose meets all requirements).
  2. If you are installing laminate flooring on or below ground level and you think there may be a problem with moisture seeping through, standard foam can be used over a 6 mil plastic moisture barrier. You can also use an underlayment that has been manufactured with a combination of standard foam and a moisture barrier.
  3. There are many high-end products from which to choose, including some underlayments that do it all. They have very high sound-reducing properties, contain superior moisture barriers and have excellent insulation qualities. When in doubt, don't take a chance. Spend a few extra dollars and get the best underlayment to protect your laminate floor investment.

Inspect the sub-floor and smooth uneven areas before installation

It's important to inspect the sub-floor before laying down the underlayment. Look for nail heads sticking up, old or uneven adhesive, and loose or squeaky floor boards that need repair. Sweep the floor clean of dirt and debris. Once the underlayment has been put down, it should look level, with no high or low spots that would ruin the final appearance of the new laminate floor.


We hope this short article has given you better understanding of the different types of laminate flooring underlayments, and how and why they are used.

For more information, feel free to contact us at 1-888-522-5456, email us at or visit our live chat. You'll meet our experienced flooring specialists who will be happy to answer all your questions.

Please click through and enjoy our website. offers top-quality laminate flooring from several major manufacturers, including Armstrong, Bruce, Mannington, Mohawk, Quick-Step, and Shaw.

Because we want you to be a satisfied customer, we also have a lot of useful information to help you learn more about laminate floors:

Should You Buy Laminate Flooring Online?

Choosing Your New Laminate Floor: The Right Product At The Right Price

Pros And cons Of Laminate Flooring

How Much Laminate Flooring Will You Need?

Proper Trims And Moldings For laminate Flooring

What You Need To Know About Underlayment For Your Laminate Flooring

10 Things You Must Know Before Hiring A Laminate Flooring Installer

Your Laminate Floor: Care And Maintenance Has Never Been Easier

Noises And Squeaks In Laminate Flooring