When you shop through links on our site, we may earn an affiliate commission. This educational content is not intended to be a substitute for professional advice.

Best Underlayment For Uneven Floors (2024 Update)

Installing new floors in your home can be an exciting project. However, if the subfloor underneath is uneven, it can cause problems down the road. Choosing the right underlayment is key to providing a smooth, stable base for your new flooring. But with so many options on the market, how do you determine the best underlayment for uneven floors?

When researching underlayments, you’ll want to consider the thickness and density of the material. Thicker, denser pads will work better for evening out minor subfloor imperfections. The underlayment’s ability to absorb sound is also important, especially for upper levels. And don’t forget about moisture protection – look for waterproof barriers to prevent moisture damage to your floors.

Will you be installing the underlayment yourself or hiring a contractor? This may influence the type of material you select. How easy is it to work with? Some into require specialized tools or glues to properly adhere them. Be sure to factor in the cost of any additional supplies or labor.

Uneven subfloors present challenges, but the right underlayment helps minimize headaches down the road. Taking the time to evaluate the factors above will help you select a product that creates a smooth, stable foundation for your new flooring. Do your homework and don’t be afraid to ask questions – the results will be worth the effort.

10 Best Underlayment For Uneven Floors

# Product Image Product Name Product Notes Check Price
1
Ideal for use as a protective layer for flooring installations in residential or commercial settings.
2
Ideal for use as an underlayment to protect flooring from moisture and provide sound insulation.
3
Ideal for providing a protective layer under flooring to prevent moisture infiltration and promote longevity.
4
It's ideal for underfloor heating installations in large areas, such as whole house or commercial projects.
5
Ideal for waterproofing surfaces in showers, bathrooms, and other wet areas.
6
Ideal for securing underlayment and foam padding during flooring installation.
7
Ideal for providing uncoupling and waterproofing between tile or stone surfaces and the substrate.
8
This underlayment is ideal for all types of flooring, providing sound insulation and moisture protection.
9
The underlayment is ideal for enhancing tile and stone durability, providing uncoupling and waterproofing properties.
10
The product is ideal for providing cushioning and noise reduction under various types of flooring.
Ideal for use as a protective layer for flooring installations in residential or commercial settings.
Ideal for use as an underlayment to protect flooring from moisture and provide sound insulation.
Ideal for providing a protective layer under flooring to prevent moisture infiltration and promote longevity.
It's ideal for underfloor heating installations in large areas, such as whole house or commercial projects.
Ideal for waterproofing surfaces in showers, bathrooms, and other wet areas.
Ideal for securing underlayment and foam padding during flooring installation.
Ideal for providing uncoupling and waterproofing between tile or stone surfaces and the substrate.
This underlayment is ideal for all types of flooring, providing sound insulation and moisture protection.
The underlayment is ideal for enhancing tile and stone durability, providing uncoupling and waterproofing properties.
The product is ideal for providing cushioning and noise reduction under various types of flooring.

1. Secureseal 3in1 Flooring Underlayment By Bestlaminate

This product is a 2mm 3in1 construction that comes in a roll of 100 sq.ft. It is designed to make installation a breeze with its pre-attached self-sealing tape strip and plastic overlap. This feature allows for a fast and easy setup process. The product is suitable for both wood and cement subfloors, making it a versatile option for any home.

This product is specifically designed for laminate and engineered floating floors. The 2mm thickness provides ample support and cushioning for a comfortable walking experience. With this product, you can rest assured that your floors will be protected from any damage.

In addition to its ease of installation and versatility, this product also comes with fast and free Fedex Ground shipping. This means that you can have it delivered directly to your doorstep, without any additional cost or hassle.

2. Cosella Dorken 600113 Underlayment, 3.5'x30'

Introducing the ultimate solution to keeping your floors moisture-free and feeling warm, dry, and comfortable – the Subfloor system. Designed specifically for concrete and slab floors, this heavy-duty product ensures that moisture is kept out for good, giving you peace of mind and a comfortable living environment.

The Subfloor system features a dimpled plastic membrane that is installed with the dimples facing down, creating an air space above the slab. This creates a barrier between the floor and the slab, preventing moisture from seeping in and causing damage. The air space also allows for proper ventilation, preventing mold and mildew from growing.

In addition to its moisture-blocking properties, the Subfloor system also features a fully sealed vapor barrier. This ensures that no moisture can come into the room, keeping your floor feeling warm and dry. With this system in place, you'll never have to worry about damp or musty floors again.

Not only is the Subfloor system incredibly effective, it's also easy to install. Simply roll out the membrane and secure it in place with adhesive. It's that simple! And once it's installed, you'll enjoy years of worry-free moisture protection.

3. Schluter Kerdi 108 Sq Ft Waterproofing Membrane

Introducing the Kerdi Membrane Waterproofing Underlayment Shower, a high-quality product designed for shower installations. This waterproofing underlayment shower is an essential component in ensuring that your shower stays leak-free and durable for years to come.

The Kerdi Membrane Waterproofing Underlayment Shower is capable of covering up to 108 sq ft, providing ample coverage for most standard shower sizes. The product is specifically engineered to allow for perfect bonding with thin-set mortar, ensuring a strong and secure installation.

One of the standout features of the Kerdi Membrane Waterproofing Underlayment Shower is its ability to allow for tiles to be installed directly on top of the membrane. This is a significant advantage, as it eliminates the need for additional steps and materials, making for a more efficient and cost-effective installation.

The product is made of soft polyethylene, which not only provides excellent waterproofing capabilities but also has crack prevention properties. This ensures that your shower remains intact and leak-free, even with prolonged use.

In terms of installation, the Kerdi Membrane Waterproofing Underlayment Shower is easy to work with and can be cut to fit any size or shape required. The product is also lightweight and flexible, making it easy to maneuver and position during installation.

4. Roberts 50-040 Underlayment Tape Roll, Red

Looking for a reliable solution to join underlayment seams? Look no further than this versatile underlayment seam tape, suitable for use with any brand of underlayment. With its moisture-resistant properties, it is ideal for general multipurpose use in a variety of applications.

Measuring 1-7/8 inches by 100 feet (48 mm x 30.5 m), this underlayment seam tape is designed for use on floating floors, repairing rips during underlayment installation, carpet padding seams, general repairs, sealing boxes, and much more. Thanks to its sturdy construction and superior adhesive properties, it can be relied upon to provide a secure and long-lasting bond in any situation.

Whether you are a professional contractor or a DIY enthusiast, this underlayment seam tape is an essential tool that should not be overlooked. With its ease of use and reliable performance, it is sure to become a staple in your toolkit. So why wait? Order your underlayment seam tape today and experience the difference for yourself!

5. Schluter Ditra 1/8" Underlayment 150 Sq Ft Roll

The Schluter Ditra 1/8" Underlayment is a high-quality flooring solution designed to provide a stable foundation for tile and stone installations. This product is available in a 150 square foot roll that can be easily cut to fit any flooring project.

Constructed from a polyethylene membrane with a grid structure of square cavities, the Schluter Ditra Underlayment offers superior uncoupling and waterproofing properties. This means that it can effectively prevent cracks from transferring to the tile or stone surface, even in high-stress areas. Additionally, its unique design allows for the free movement of moisture, preventing the buildup of mold and mildew.

The Schluter Ditra Underlayment is easy to install and can be used on a variety of substrates, including concrete, plywood, and cement backer board. Its lightweight and flexible nature make it an ideal solution for both residential and commercial applications.

This underlayment is also compatible with most types of tile and stone, including ceramic, porcelain, marble, and granite. Its thin profile of only 1/8" ensures that it will not add significant height to the finished flooring, making it a great option for renovation projects where space is limited.

6. Quietwalk Plus Qw360plus All Flooring Underlayment With Attached Vapor Barrier, Blue, 6' X 30'

This flooring underlayment is a versatile and effective solution for a variety of flooring types. Designed to work with laminate, floating engineered, nail down, and glue-down flooring, this underlayment is an essential component to ensure a smooth and long-lasting flooring installation.

The underlayment boasts superior sound reduction capabilities, thanks to its dense recycled fiber structure. This structure effectively absorbs sound and prevents it from traveling to other rooms, resulting in a quieter and more comfortable living space. Additionally, the underlayment supports the click-together mechanism, keeping the flooring securely in place even under consistent traffic.

Moisture protection is also a key feature of this flooring underlayment. The recycled fibers allow installation over concrete to "breathe", managing vapors from becoming bulk moisture. The attached vapor barrier further protects the overlying floors from harmful moisture, ensuring a durable and long-lasting flooring installation.

This underlayment is certified clean and safe for indoor air quality, with no VOCs (Volatile Organic Compounds) or off-gassing from materials. This means that homeowners can enjoy a healthier living environment with this underlayment.

The underlayment is also approved for in-floor radiant heat systems, allowing heat to permeate evenly while protecting the floor covering material from thermal shock. The Quiet Warmth Radiant Heat System helps to achieve warmth while maintaining the integrity of the flooring installation.

Installation is made easy with this flooring underlayment, which can be simply rolled out and joined at the seams. It can be installed over wood or concrete subfloors with ease, covering an impressive 360 sq. ft. per roll.

7. Schluter Ditra 1/8" Underlayment 323sqft

The Schluter Systems Uncoupling Mat is a high-quality product designed to protect your flooring from damage due to substrate movement. Made from durable polyethylene material, this uncoupling mat is engineered to provide superior waterproofing, crack prevention, and vapor management.

With its innovative design, the Schluter Systems Uncoupling Mat helps to reduce the stress on your tile and grout joints caused by substrate movement. This helps to prevent damage to your flooring, ensuring that it remains intact and looking great for years to come.

This uncoupling mat is incredibly easy to install, making it the perfect choice for both DIY enthusiasts and professional contractors. Simply lay it over your substrate and begin tiling right away. The Schluter Systems Uncoupling Mat is also incredibly versatile, making it suitable for use with a wide range of flooring materials.

So if you're looking for a reliable and effective way to protect your flooring from damage, look no further than the Schluter Systems Uncoupling Mat. Durable, easy to install, and designed to provide unbeatable protection, this uncoupling mat is the perfect choice for any flooring project.

8. Qep 72001q Natural Cork Underlayment 1/2 Inch Sheet 150 Sq. Ft. (25 Sheets) , Brown

This flooring underlayment is a must-have for anyone seeking a more peaceful and comfortable home environment. It effectively reduces sound transmission from the surface of a floor as well as through the floor to living spaces below.

Designed for use under a variety of flooring types, including ceramic tile, stone, marble, engineered hardwood, and laminate, this underlayment is incredibly versatile. It also acts as a crack isolation membrane, which resists the transfer of stress cracks from the subfloor through to flooring surfaces.

In addition to reducing sound transmission, this underlayment also reduces thermal transmission, which increases the effectiveness of floor heating systems. This feature is especially beneficial during colder months when you want to keep your home warm and cozy.

Installation is a breeze with this underlayment, as it can be easily installed in both glue-down and loose-lay configurations. This makes it a great option for DIY enthusiasts and professionals alike.

With a Delta IIC value of 24 and an STC of 62, this underlayment is sure to make a noticeable difference in your home's soundproofing capabilities. It also boasts an IIC of 71 with an 8” concrete floor with a suspended ceiling.

Best Underlayment For Uneven Floors FAQs

Are there any specific types of underlayment that work better for uneven floors?

Yes, there are specific types of underlayment that work better for uneven floors. The type of underlayment that works best for an uneven floor largely depends on the degree of unevenness. If the floor is slightly uneven, a foam underlayment can be used to create a smooth surface. However, if the floor is severely uneven, a self-leveling underlayment may be required to ensure a level surface.

Another option for uneven floors is cork underlayment, which is a natural material that can compress and conform to the contours of an uneven floor. This type of underlayment can provide a cushioned feel underfoot and help reduce noise from foot traffic.

It is important to consult with a flooring professional or manufacturer to determine the best type of underlayment for your specific situation. They can provide recommendations based on the degree of unevenness, the type of flooring being installed, and other factors that may impact the installation process.

Can underlayment be used on both concrete and wood subfloors for uneven floors?

Yes, underlayment can be used on both concrete and wood subfloors for uneven floors. Underlayment is a thin layer of material that is placed between the subfloor and the finished floor to provide a smooth, level surface. It can help to correct minor imperfections in the subfloor and provide additional cushioning and soundproofing.

For concrete subfloors, a self-leveling underlayment can be used to correct larger imperfections. This type of underlayment is mixed with water and poured onto the subfloor, where it will level itself out to create a smooth surface.

For wood subfloors, plywood or OSB (oriented strand board) can be used as an underlayment to provide a smooth surface. It's important to make sure the subfloor is securely fastened to prevent any movement that could cause the underlayment to shift or crack.

Overall, underlayment can be a great solution for correcting uneven floors on both concrete and wood subfloors. It's important to choose the right type of underlayment for your specific needs and to follow the manufacturer's installation instructions carefully.

Can underlayment be used to reduce noise on uneven floors?

Yes, underlayment can be used to reduce noise on uneven floors. Uneven floors can result in noise due to the movement of the flooring materials, and underlayment can help absorb some of the vibrations and reduce the sound. However, it is important to note that not all types of underlayment are suitable for uneven floors. It is recommended to use a thicker underlayment made of materials such as cork, rubber, or foam, as they are more flexible and can better conform to the uneven surface. Additionally, it is important to properly prepare the subfloor before installing the underlayment to ensure a smooth and even surface. Overall, using underlayment can be an effective way to reduce noise on uneven floors, but it is important to choose the right type of underlayment and properly prepare the subfloor for optimal results.

Can underlayment help level out an uneven floor?

Yes, underlayment can help level out an uneven floor to some extent. Underlayment is a thin layer of material that is placed on top of the subfloor to provide a smooth surface for the final flooring installation. It can be made of various materials such as plywood, cement board, or foam.

If the unevenness of the floor is not too severe, using underlayment can help to create a more level surface. However, if the floor is extremely uneven, using underlayment alone may not be enough to solve the problem. In such cases, it may be necessary to address the underlying issue causing the unevenness, such as a subfloor that has shifted or settled over time.

It's important to note that underlayment can also help to reduce the noise and provide insulation. Therefore, it's always a good idea to consult with a professional flooring installer to determine the best type of underlayment to use for your specific flooring needs and to ensure that the installation is done correctly.

How do you properly install underlayment on an uneven floor?

Properly installing underlayment on an uneven floor requires a few extra steps to ensure a smooth and level surface for the finished flooring. First, you should assess the extent of the unevenness and determine if any major leveling is required. If so, self-leveling concrete can be used to even out the surface. Once the floor is level, a moisture barrier should be laid down, followed by a layer of underlayment. When installing the underlayment, start along the longest wall and work your way across, making sure to overlap each seam and secure it with adhesive or tape. If there are any particularly high or low spots, use a floor patching compound to level them out before laying the underlayment. It’s also important to use the appropriate thickness of underlayment for the type of flooring being installed. Following these steps will help ensure a smooth and level surface for your finished flooring.

How much does underlayment cost for uneven floors?

The cost of underlayment for uneven floors can vary depending on various factors such as the type of underlayment, the size of the area, and the severity of the unevenness. Generally, the cost of underlayment ranges from $0.25 to $0.75 per square foot. However, if you require additional preparation such as floor leveling or repair, the cost can significantly increase.

For example, if you need to level a severely uneven floor, you may need to hire a professional contractor, which can cost around $2 to $3 per square foot. Additionally, if you opt for high-quality underlayment materials, such as cork or rubber, the cost can also increase.

To get an accurate estimate of the cost of underlayment for your uneven floors, it's best to consult with a professional contractor who can provide you with a detailed quote based on your specific needs.

How thick should underlayment be for an uneven floor?

When it comes to underlayment for an uneven floor, the thickness of the underlayment depends on the severity of the unevenness and the type of flooring that will be installed. Generally, underlayment thickness can range from 1/8 inch to 1/2 inch or more.

For minor unevenness, a thinner underlayment may be sufficient. However, for more significant unevenness, a thicker underlayment is necessary to create a level surface for the flooring to be installed on.

It is important to note that underlayment should not be used to correct major structural issues in the subfloor. If the subfloor is severely uneven, it should be addressed before installing any underlayment or flooring.

Ultimately, it is recommended to consult with a flooring professional to determine the appropriate thickness of underlayment needed for your specific situation. They can assess the condition of the subfloor and recommend the best course of action for achieving a level and stable surface for your new flooring.

Is there a specific brand or product that is known to work well for uneven floors?

There isn't a specific brand or product that is known to work well for uneven floors as the right solution depends on the severity of the floor's unevenness and the type of flooring material that will be installed. However, there are a few options that can be considered.

One option is self-leveling underlayment, which is a mixture of cement and other additives that can be poured onto the uneven floor to create a smooth and level surface. Another option is using leveling clips and wedges during the installation of tiles or hardwood floors to help level them out. Additionally, some flooring materials, like luxury vinyl planks, are more forgiving when it comes to uneven floors and can conform to the contours of the surface.

It's important to consult with a professional contractor or flooring specialist to determine the best solution for your specific situation. They can assess the condition of the floor and recommend the most appropriate method to achieve a level and stable surface for your new flooring.

Should underlayment be used in addition to floor leveling compounds for uneven floors?

Yes, underlayment should be used in addition to floor leveling compounds for uneven floors. While floor leveling compounds can help to smooth out minor imperfections in a subfloor, they are not designed to provide the structural support that underlayment can offer. Underlayment can help to strengthen the subfloor, prevent moisture from seeping through, and reduce noise transmission between floors. It also provides a smoother surface for the installation of a new floor. In some cases, underlayment may even be required by the manufacturer of the flooring material in order to maintain the warranty. It is important to choose the appropriate type of underlayment for the specific flooring material being installed and to ensure that it is installed correctly in order to achieve the desired results. Consulting with a professional contractor or flooring specialist can help to ensure that the right products and techniques are used for the job.

What are the best underlayment options for uneven floors?

When it comes to uneven floors, choosing the right underlayment is crucial to ensure a smooth and stable surface for your new flooring. The best underlayment options for uneven floors include self-leveling underlayment, cork underlayment, and foam underlayment.

Self-leveling underlayment is a great option for severely uneven floors. This type of underlayment is made from a mixture of cement and other materials and can be poured onto the floor to create a smooth and level surface.

Cork underlayment is another great option for uneven floors. This type of underlayment is made from natural cork and can help to absorb and reduce the impact of uneven areas on your flooring.

Foam underlayment is a versatile option that can be used on both concrete and wood subfloors. It is available in a range of thicknesses and can help to level out minor imperfections in your subfloor.

Ultimately, the best underlayment option for your uneven floor will depend on the severity of the unevenness and the type of flooring you plan to install. It's always best to consult with a professional before making your final decision.

Similar Posts