Do I Need Underlayment for Vinyl Flooring on Concrete?

Do I Need Underlayment for Vinyl Flooring on Concrete?

“Do I need underlayment for vinyl flooring on concrete?” is one that resonates with many home renovators and builders.

Underlayment plays a crucial role in flooring installation, a fact that is often overlooked, leading to long-term flooring problems.

Understanding the intricacies of underlayment can significantly enhance the durability and comfort of your newly installed vinyl floors.

This blog post aims to delve into the necessity and benefits of underlayment for vinyl flooring on concrete, providing you with the knowledge you need to make an informed decision for your project.

What is Underlayment, and How Does it Function?

Underlayment is the layer between your subfloor and your new floor. Its primary function? To provide a smooth, stable base for the top flooring, ensuring it lies flat and wears well.

Let me share an experience I had a few years ago when I was renovating my own home. I thought I could skip this seemingly unimportant layer.

Let me tell you, friend, I was in for a surprise when the flooring started showing wear and tear in just a few months.

A Primer on Underlayment Materials

You should know that not all underlayments are created equal.

The type you’ll need depends mainly on the type of flooring you’re planning to install and the condition of your subfloor.

Here are a few of the most common ones I’ve worked with:

1. Plywood Underlayment

When I installed my hardwood floor, I used plywood underlayment.

It’s reliable, sturdy, and great for many flooring options, including hardwood and carpet.

While it might be slightly pricier, it’s well worth it for the longevity it adds to your flooring.

2. Cement Backer Board

Installing tiles? I’d recommend cement backer board.

It’s a super sturdy material that can resist the heaviest of tiles, and it’s especially good at resisting moisture.

I used this in my bathroom, and it has held up superbly.

3. Foam Underlayment

If you’re installing laminate or engineered wood flooring, foam underlayment is your Go-To.

It provides an extra cushion that makes walking on your floors a real treat.

Plus, it helps with soundproofing.

Living in a busy household, I found this a real lifesaver.

Considerations When Choosing Underlayment

When it comes to choosing the proper underlayment for your project, there are several factors you have to consider.

I learned the hard way that it’s not just about choosing the most expensive or the one that looks the most durable.

It’s about understanding your specific needs and making a choice that aligns with them.

Factors like your subfloor condition, the type of flooring you’re installing, and even the level of foot traffic your floor will endure can all play a role in choosing the proper underlayment.

Remember, a well-planned project is a successful project.

When Is Underlayment Necessary for Vinyl Flooring on Concrete?

Underlayment can be a crucial factor when installing vinyl flooring over concrete, but it’s not always necessary. Here’s when you might need to consider it:

Where Underlayment Is Typically Recommended

1. Uneven Concrete Surfaces

If your concrete subfloor isn’t entirely level, an underlayment can be a game-changer. I encountered this situation when I was renovating my basement.

The concrete floor was uneven, with minor bumps and dips. By using underlayment, I created a smooth surface for my vinyl flooring to lay perfectly flat.

2. Moisture-Prone Areas

High moisture areas like basements or bathrooms and kitchens are notorious for being a headache regarding flooring.

When installing vinyl flooring in my kitchen, I opted for underlayment to protect the flooring from possible water damage.

It acted as a moisture barrier, keeping my kitchen floor safe and sound.

3. Sound Insulation Requirements

When I converted my upstairs loft into an office, I was conscious of the noise that may filter down to the rooms below.

Underlayment provided an excellent solution. It helped dampen the sound, making my office a quieter place to work and preserving the tranquillity of the rest of the house.

When Underlayment May Not Be Needed

  • Well-prepared and Level Concrete Subfloors

If the concrete subfloor is in good shape, level and clean, you might not need underlayment.

When I installed vinyl flooring in my lounge, I was lucky to deal with a perfectly prepared subfloor.

The installation was a breeze, and the floor looked great years later.

  • Certain Vinyl Flooring Types

Certain types of vinyl flooring, like rigid core vinyl, already have an underlayment attached.

When I renovated my guest room, I used this type of flooring. It saved me time and money as I didn’t need to add underlayment.

Read the manufacturer’s instructions before installing to see whether an additional underlayment layer is necessary.

Benefits of Using Underlayment

Underlayment has proven to be an integral part of my flooring projects, offering many benefits that have genuinely made a difference in the overall quality and longevity of my floors.

Advantages of Installing Underlayment

  • Improved Subfloor Preparation

The use of underlayment has significantly enhanced the preparation of my subfloor.

When I was renovating my old country home, the wooden subfloors were uneven and had numerous imperfections.

Underlayment allowed me to create a smoother surface, making the vinyl flooring installation process much more manageable.

  • Enhanced Insulation and Comfort

Another clear advantage of using underlayment is the added insulation and comfort it provides.

I noticed this most when I installed underlayment in my basement.

The underlayment prevented the cold concrete floor from making the vinyl floor uncomfortably cold to walk on, especially during the winter months.

  • Sound Reduction

As mentioned earlier, underlayment is an excellent solution for sound dampening.

This was particularly useful when I converted my attic into a playroom for my grandkids.

The underlayment minimized the noise filtering down to the rest of the house, ensuring a peaceful environment.

  • Moisture Protection

Underlayment serves as an effective moisture barrier, especially in moisture-prone areas.

For instance, when installing vinyl flooring in my bathroom, underlayment protected the floor from potential water damage, ensuring longevity.

How to Install Underlayment for Vinyl Flooring on Concrete

Step-by-step guide to underlayment installation

1. Preparing the concrete subfloor

The first step in installing the underlayment is preparing the concrete subfloor.

I remember when I first started, the importance of this step was not immediately apparent to me.

However, I quickly learned that this is crucial, as any dirt or dust can interfere with the adhesion of the underlayment.

I always begin by thoroughly cleaning the subfloor, removing any debris, and ensuring it’s dry and level.

2. Laying the underlayment material

After preparing the subfloor, it’s time to lay down the underlayment material.

I start at one end of the room and unroll the underlayment across the floor.

It’s essential to ensure the material lies flat against the concrete with no bunching or overlapping.

3. Securing the underlayment

The third step is securing the underlayment to the concrete subfloor.

When installing the underlayment in my basement, I found it helpful to use a specific underlayment adhesive to ensure the material was securely attached to the subfloor.

Apply the adhesive evenly across the concrete before pressing the underlayment down.

4. Addressing seams and overlaps

Finally, it’s essential to address any seams and overlaps.

Any areas where the edges of the underlayment meet should be taped using a suitable seam tape.

This prevents moisture from getting through and ensures a smooth, even surface for your vinyl flooring.

Tips and tricks for a successful underlayment installation

Over the years, I’ve picked up a few tricks that have made my underlayment installation successful.

One tip is always to measure twice before cutting your underlayment material. This ensures it fits perfectly and prevents wastage. Another tip is to use a utility knife to trim the material.

It gives a cleaner cut compared to scissors or a regular knife. And most importantly, take your time.

Rushing the installation process can lead to mistakes, and the flooring is something you’ll want to last for many years.

Types of Vinyl Flooring Compatible with Underlayment

In my flooring journey, I’ve realized that underlayment isn’t just a one-size-fits-all solution.

Different types of vinyl flooring have different needs and, therefore, work well with different types of underlayment.

Here are some of the most popular types of vinyl flooring that I’ve worked with and how they interact with underlayment.

Luxury Vinyl Plank (LVP)

Luxury Vinyl Plank, or LVP as professionals call it, is a common choice for many homeowners, including myself.

It’s designed to mimic hardwood flooring, and let me tell you, it does a bang-up job.

The underlayment you choose for your LVP can make a big difference in the feel and sound absorption of the floor.

I recommend a high-quality foam underlayment for LVP.

Luxury Vinyl Tile (LVT)

Then there’s the Luxury Vinyl Tile or LVT. This type of vinyl flooring imitates stone or ceramic tile with a different feel underfoot.

The underlayment for LVT can help even minor subfloor imperfections, providing a smoother surface for your vinyl tiles.

I’ve found that cork underlayment works wonders with LVT, providing an extra level of cushioning and sound absorption.

WPC and SPC Vinyl Flooring

Lastly, there’s WPC (Wood Plastic Composite) and SPC (Stone Plastic Composite) vinyl flooring.

These new kids on the flooring block, boasting superior durability and waterproof capabilities.

They already have an attached underlayment, so additional underlayment isn’t typically necessary.

However, if you’re concerned about sound, like when I was installing flooring in my basement home theatre, you might want to consider an additional soundproof underlayment.

While installing my own floors, I learned that not all underlayment is compatible with every type of vinyl flooring. For instance, some vinyl floors have a pre-attached underlayment, and using an additional underlay can compromise the floor’s integrity. Always check with the manufacturer’s recommendations before deciding on the underlayment. And remember, a properly chosen and installed underlayment can drastically improve the longevity and comfort of your vinyl flooring.

Maintenance and Care

Maintaining and caring for your underlaid vinyl flooring is crucial for its longevity and overall performance.

I can’t stress enough how important this aspect is, based on my personal experience.

Proper Maintenance for Underlaid Vinyl Flooring

Proper maintenance of your vinyl flooring is like getting regular oil changes for your car—it’s protection for your investment.

In my years of having vinyl flooring, I’ve noticed how the lack of proper upkeep can lead to quick wear and tear, ultimately defeating the purpose of having a durable floor.

The underlayment may protect your floor from below, but the surface needs your attention to resist daily wear, staining, and spills.

Cleaning and Maintenance Tips for Underlaid Vinyl Flooring

  1. Regular Cleaning: Sweeping or dust mopping daily can keep your floors looking fresh and free from abrasive dirt. When I first installed my LVT, I noticed small particles like gravel could easily scratch the surface. A daily sweep became my ritual.
  2. Deep Cleaning: Every week, I use a damp mop with a gentle cleaner made specifically for vinyl floors. Never use abrasive cleaners or a steam mop, which can damage your floor’s finish.
  3. Spot Cleaning: For spills, I act as quickly as possible to prevent staining. A soft cloth or towel works best for this.
  4. Protection: To prevent scratches, I added felt pads to the bottom of my furniture and made it a point to lift, not drag, when moving items around.
  5. No Wax: Unlike other flooring types, vinyl floors shine without wax. Adding wax can dull the finish, a hard lesson I learned early on.

Remember, vinyl flooring is a low-maintenance option, but “low-maintenance” doesn’t mean “no maintenance.” A little love and care go a long way in keeping your floors in top-notch condition.


Hi! I’m Kobby, one of the co-owners of and the newest house owner in town. I’m a huge fan of most things natural. Over here on this site, I'm happy to share all the exciting hacks, tricks, and tips I have learned and continue to learn each day about taking care of natural stones.

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