What Do You Put Under Laminate Flooring?

What do you put under laminate flooring? The type of underlay that you use depends a lot on the floor type you have. The most common underlay that you will find is made with expanded polystyrene (also known as Styrofoam) or expanded polyurethane (also called EPS). They are very affordable, easy to install and provide very good sound deadening properties. You want to make sure you do not have a layer underneath that is made of anything that is going to weaken the structural integrity of your floor.

Different densities of underlay

There are different densities of underlay. Some are stiffer than others and some have more dampening properties than others. Depending on the location where you are installing the laminate flooring Dubai underlay, you may want to choose a density that is closer to that of the room it is being installed in. For example, installing underlays in a garage would not be recommended for an interior room. The density of the underlay you choose is directly related to the amount of moisture that can be retained in the room.

Expanded polystyrene layer

There are also many types of underlays. One popular type is the expanded polystyrene layer. This is made up of two layers. One is a thick expanded polystyrene layer that is packed into a cylinder. The next layer is a thin sheet of Styrofoam. These layers are then stacked together and formed into an underlay.

Expanded underlays work very well to reduce moisture absorption by 50%. They are very rigid, which provides additional insulation and sound deadening qualities. When moisture seeps into these layers, it is converted into vapour, which can easily escape through tiny holes.

Polyurethane underlay

Most underlays will contain either polyurethane or hard plastic. Polyurethane is more moisture-resistant than soft plastic, but they both are effective in absorbing moisture. They are available in a variety of densities and thicknesses, and can even be combined to provide a higher degree of moisture absorption than just one of these elements on its own. You should check with your manufacturer to find out which underlay you should use. Never use a combination of underlays.

After you have selected your underlay, it is time to install your laminate. Start by preparing the subfloor by clearing any large debris from the area. Then, sweep or vacuum the subfloor thoroughly using a broom or vacuum cleaner with beater bar attachments. Be especially careful to clear away any nails or staples that may be in the way of your new underlayment.

Benefits of underlay

Once you have your subfloor ready, your laminate installation is ready to begin. Your underlayment will be laid to form a base which aids the laminate in sinking into the floor. The layers beneath the laminate will act as a vapor barrier, retaining the heat in the room while keeping the moisture out. This allows you to keep your home cool during the summer and warm during the winter.

Reduce sound

In addition to a moisture barrier, the underlayment you choose should also have an effective sound deadening properties. By sound deadening, I mean that the underlay will help to reduce the sounds caused by feet on the flooring. It’s been proven that the sound of footsteps causes noise pollution which is unpleasant and distracting to family members and visitors.

Durability of laminate flooring

Choosing the right underlayment will also help your laminate last longer. The more layers you have, the more your underlayment will protect your laminate from getting damaged from being stepped on or rinsed repeatedly. It is also important to check for the manufacturer’s warranty and ask about any special needs that may affect your needs. Some underlays are specially made for areas where water is not common such as near a swimming pool or near a basement.


What do you put under laminate flooring? You need to keep in mind the different factors above to ensure you are purchasing the perfect product for your home. Make sure you understand all the materials and products used in the underlayment you select and check the manufacturer’s warranty before purchasing. With these considerations in mind, you can be confident that your next flooring project will be a success.


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