Do You Need an Underlayment for Laminate Flooring?

Do You Need an Underlayment for Laminate Flooring

When it comes to laminate flooring installations, the role of an underlayment warrants careful consideration. This thin layer, installed between the laminate planks and subfloor, can potentially offer benefits. Do you need an underlayment for laminate flooring? This question reflects the concerns of many minds. 

However, the decision to incorporate an underlayment is not straightforward. There are factors to weigh. The type of underlayment you choose can also play a role, as materials offer varying protection and performance.

Is an underlayment necessary in all cases? By exploring advantages and disadvantages, you can make the right decision that ensures a successful laminate flooring experience.

Do You Need an Underlayment for Laminate Flooring?

Source: / Photo Contributor: ALEXSTAND

Do You Need an Underlayment for Laminate Flooring?

Yes, an underlayment is typically necessary for laminate flooring. It serves several purposes. These include providing cushioning, reducing noise, and smoothing out minor imperfections in the subfloor. 

The underlayment can act as a moisture barrier, helping to protect the laminate flooring. 

Using an underlayment is advisable for laminate flooring installation. There may be exceptions based on specific manufacturer recommendations, but generally, it can improve performance and longevity. Why do you need underlayment for laminate flooring? Let’s explore further!

Benefits of Using Underlayment

Using an underlayment when installing laminate flooring offers numerous benefits that can enhance comfort, acoustics, and longevity. It provides a softer, more comfortable surface to walk on and contributes to thermal insulation, which helps regulate room temperature and potentially reduces energy costs.

The underlayment’s sound-dampening capabilities minimize impact and airborne noise transmission, creating a more peaceful environment. This is especially beneficial in multi-level homes or those with shared walls. 

Underlayment acts as a moisture barrier, safeguarding laminate planks from potential damage. This occurs when vapor or moisture seeps through concrete subfloors. 

Underlayments also conceal minor subfloor imperfections, providing a uniform, stable base. This facilitates smoother installation, preventing planks from shifting or separating over time. As a result, it promotes a seamless appearance and prolongs the flooring’s lifespan. 

So, do you need underlay for laminate flooring?

Benefits of Using Underlayment

Source: / Photo Contributor: VanoVasaio

Deciding If You Need Underlayment for Laminate Flooring

Manufacturer’s recommendations

When determining whether you need an underlayment for laminate flooring, it’s crucial to follow the manufacturer’s recommendations. Most manufacturers strongly advise the use of an underlayment for optimal performance and longevity of their products. Ignoring these guidelines may void the warranty and lead to potential issues down the line. 

Additionally, some laminate products come with an underlayment pre-attached to the planks. In such cases, follow the specific installation instructions provided. Using an additional underlayment may not be necessary, and it could even interfere with the performance of the pre-attached layer.

Subfloor considerations

The type of subfloor you’re installing the laminate flooring over can also influence the necessity of an underlayment. For relatively smooth and level subfloors, such as plywood or existing hardwood floors, an underlayment may be optional. However, it’s still recommended for added moisture protection and sound insulation.

On the other hand, when installing over concrete subfloors, an underlayment becomes essential. Concrete is porous and can allow moisture vapor to seep through, potentially damaging the laminate planks. In this case, a moisture-resistant underlayment acts as a crucial barrier, safeguarding your investment.

Installation areas

The specific area where you’re installing the laminate flooring may also dictate the need for an underlayment with particular features. For high-moisture areas like bathrooms or laundry rooms, a waterproof underlayment is highly recommended. This added protection ensures your flooring remains unaffected by potential spills or humidity. 

Basements and installations over radiant heating systems also require special consideration. Moisture-resistant and insulating underlayments are essential in these cases. 

They prevent potential issues like condensation buildup and heat loss through the flooring. Different installation environments may require specific underlayment features. These features ensure the best performance and longevity of your laminate floors.

Things to Avoid When Installing a Laminate Underlayment

When installing a laminate underlayment, it’s crucial to avoid overlapping the seams. This can create an uneven surface, causing the laminate planks to become unlevel or shift over time. Using the wrong type of underlayment for your specific subfloor conditions or intended use can also lead to inadequate protection or performance issues. 

Moreover, common mistakes to avoid include failing to leave proper expansion gaps. Improper seam sealing is another one. Skipping the acclimation process for the laminate planks and underlayment should also be avoided.

It is important to follow manufacturer guidelines carefully and choose the appropriate underlayment. Taking the necessary preparation steps can help prevent these errors and ensure a successful laminate flooring installation.

Things to Avoid When Installing a Laminate Underlayment

Source: / Photo Contributor: Arturs Budkevics


Do you need an underlayment for laminate flooring? While an underlayment may not be an absolute necessity in every situation, it can offer an extra layer of security and comfort for your laminate floors. Ultimately, the decision to use an underlayment should be based on your specific needs, preferences, and the conditions of your installation space. 

We hope this article has helped you understand the potential benefits an underlayment can provide. These benefits range from moisture protection to sound absorption and insulation.

By weighing the advantages and disadvantages, you can make an informed choice that aligns with your desired flooring experience. With the knowledge gained, you’re now better equipped to determine whether an underlayment is the right investment for your laminate flooring project.

Mark is a seasoned home services contractor and now serves as the Director of Market Research for Services Curated.