9 Reasons Why Laminate Flooring Separates & How to Fix It

why is my laminate floor separating

Due to its durability, cost-effectiveness, and ease of installation, laminate flooring has become popular among homeowners. 

Despite its many advantages, many face a common issue: the separation of laminate flooring. This problem can detract from the aesthetic appeal of your floors and potentially lead to more serious issues. 

It’s crucial to understand that this separation is not a random occurrence; it happens for various reasons, and there are solutions to fix it. 

In this blog post, we dive into the reasons behind laminate floor separation and provide practical solutions to help you maintain the beauty and functionality of your flooring.

Understanding Laminate Flooring

What is Laminate Flooring?

Laminate flooring is a multi-layer synthetic flooring product that simulates the appearance of hardwood with a photographic applique layer under a clear protective layer. 

It is known for bringing the aesthetic appeal of natural wood into homes at a fraction of the cost.

Advantages and Affordability of Laminate Flooring

One of the main selling points of laminate flooring is its affordability. It provides homeowners the stylish look of hardwood or stone without the hefty price tag. 

Besides cost-efficiency, laminate flooring is also durable and resistant to scratches, moisture, and wear and tear, making it an excellent choice for high-traffic areas. 

Importance of Proper Maintenance for Longevity

Maintaining laminate flooring is essential for its longevity. While it’s true that this type of flooring is tough and resistant, it’s still crucial to follow proper care and maintenance practices. 

Regular cleaning, careful handling of heavy furniture, and immediate action against spills will ensure that your laminate flooring remains pristine for years. 

Doing so will help you avoid common issues such as separation and other types of damage.

Reasons Why Laminate Floors Separate

One common reason for laminate floor separation is moisture damage. 

1. Moisture Damage

Moisture can significantly affect the integrity of laminate flooring. Laminate consists of several synthetic layers; when exposed to excessive moisture, these layers can swell and deform. 

This swelling can cause the laminate planks to separate from each other, leaving unsightly gaps in your flooring.

How Does Moisture Affect Laminate Flooring?

Water is known as laminate flooring’s worst enemy. When excess water seeps into the laminate, it penetrates the layers and causes them to expand. 

This expansion can warp and buckle, forming gaps between the planks.

Signs of Moisture Damage

Identifying moisture damage early on is crucial to prevent extensive damage. 

Typical signs of moisture damage on laminate flooring include warping or cupping of the boards, discoloration, and musty smells. 

If you notice these signs, your laminate flooring has likely been exposed to excessive moisture.

Solution: Controlling Humidity and Moisture

  • To prevent moisture damage, it’s essential to maintain an appropriate level of humidity in your home. 
  • Using dehumidifiers or air conditioners can help control the indoor humidity. 
  • Also, addressing sources of moisture such as leaks, damp basements, or high indoor humidity can prevent moisture from seeping into your laminate flooring. 
  • Moisture barriers or underlays can also be installed beneath the laminate to protect it from moisture damage.

2. Poor Installation

Poor installation can also lead to laminate floor separation. The planks must be aligned and joined to ensure a seamless and durable laminate floor. 

Incorrect installation techniques can leave gaps or cause the planks not to lock firmly together, leading to separation over time.

Impact of Improper Installation on Laminate Floors

Improper installation can significantly impact the longevity and appearance of your laminate floors. 

If the planks are not aligned correctly or if they are not adequately secured, gaps can appear between them. 

These gaps not only detract from the aesthetic appeal of your floor but can also allow dust, dirt, and moisture to seep in, leading to further damage.

Professional Installation or DIY Guidelines

To avoid the problems associated with poor installation, it is essential to either hire a professional installer or closely follow DIY guidelines if you’re installing the flooring yourself. 

Professionals have the experience and tools to ensure the floor is installed correctly. Alternatively, if you’re doing it yourself, educate yourself about the process and follow the manufacturer’s instructions carefully.

Solution: Proper Installation Techniques

Utilizing correct installation techniques is critical in preventing laminate floor separation. Here are some steps to ensure proper installation:

  • Prepare the Subfloor: Before installing laminate flooring, ensure the subfloor is clean, dry, and level. Any unevenness can lead to problems down the line.
  • Acclimate the Laminate: Allow the laminate flooring to acclimate to the room’s temperature and humidity for at least 48 hours before installation.
  • Use the Right Tools: Use a tapping block and pull bar to correctly install and lock the laminate planks together without damaging them.
  • Leave Expansion Gaps: Laminate flooring expands and contracts with changes in temperature and humidity. Leaving a gap around the room’s perimeter allows for this natural movement and prevents buckling.
  • Install Moisture Barriers: Use a moisture barrier if installed over concrete or in a moisture-prone area.

Adhering to these techniques can ensure a successful laminate flooring installation and prevent potential separation issues.

3. Subfloor Issues

The role of the subfloor in laminate floor stability cannot be overstated. It serves as the base for your laminate flooring, and any issues with the subfloor—such as unevenness, moisture, or instability—can lead to problems like laminate floor separation.

Role of the Subfloor in Laminate Floor Stability

The subfloor is foundational to the stability of the laminate flooring. The laminate planks must be level, clean, and dry to fit snugly and securely. 

If the subfloor is uneven or wet, it can lead to laminate separation, creaking sounds, or damage to the laminate.

Common Subfloor Problems Leading to Separation

Several subfloor issues can lead to laminate floor separation. These include:

  • Uneven subfloor: An uneven subfloor can result in gaps between the laminate planks.
  • Moisture issues: Moisture seeping from the subfloor can cause laminate planks to warp and separate.
  • Insufficient preparation: Failing to adequately prepare the subfloor before laying the laminate flooring can lead to separation over time.

Solution: Subfloor Preparation and Leveling Techniques

To avoid these problems, it’s crucial to properly prepare and level the subfloor before installing laminate flooring.

  • Assess the condition: First, examine the subfloor for any signs of damage, unevenness, or moisture issues.
  • Clean and dry: Ensure the subfloor is clean and completely moisture-free. You might need a dehumidifier or heater to dry out damp areas.
  • Level the subfloor: Use a self-leveling compound to correct any uneven spots. Follow the product instructions carefully.
  • Inspect and Repeat: Check again for any irregularities. Repeat the leveling process if necessary.

4. Expanding and Contracting

Temperature and humidity fluctuations can significantly impact the stability of laminate flooring. 

When exposed to varying temperature and humidity levels, laminate flooring tends to expand and contract. 

This is because laminate flooring, like any wood-based product, absorbs and loses moisture in response to the surrounding environment. 

High humidity can cause the planks to expand, whereas low humidity or high temperature can cause them to shrink. 

This constant cycle of expansion and contraction can lead to separation, warping, or buckling over time.

Expansion Gaps and Transition Strips

To accommodate these changes in size, laminate flooring installation includes expansion gaps and transition strips. 

Expansion gaps are small spaces left around the room’s perimeter and at certain intervals in large rooms. 

These gaps allow the laminate floor to expand and contract freely without causing damage. 

Transition strips, on the other hand, are used between rooms or different flooring types to allow each flooring section to expand and contract independently.

Solution: Proper Expansion Gap Maintenance

  • Proper maintenance of these expansion gaps is essential to the life and look of your laminate flooring. 
  • Never fill these gaps with filler or any other material. Instead, use baseboards, quarter rounds, or suitable trim to cover the gaps. 
  • This enhances the appearance of the laminate flooring and allows it to move freely. It’s also important to monitor the room’s humidity levels and maintain them within the recommended range to minimize excessive expansion and contraction. 
  • Use of a dehumidifier or humidifier as required can help maintain the balance. Regular inspection and maintenance of these areas can prevent many common laminate flooring issues, including separation.

5. Low-Quality Laminate

Choosing low-quality laminate flooring can often lead to a host of problems in the long run. Understanding the pitfalls of cheap laminate is crucial to make an informed decision.

Choosing High-Quality Laminate

High-quality laminate flooring is often more durable, comfortable, and aesthetically pleasing than its cheaper alternatives. 

High-quality laminate can withstand daily wear and tear with better manufacturing processes and materials, ensuring longevity. 

Moreover, it often has added features like water resistance and an extra layer to prevent scratches and dents.

How Cheap Laminate Can Lead to Separation 

Low-cost laminate is often made with inferior materials that can lead to separation and other issues over time. 

They are less resistant to changes in humidity and temperature and have weaker locking systems, making them prone to separation. 

This could lead to unsightly gaps in your flooring and even pose tripping hazards.

Solution: Investing in Durable Laminate Options 

  • Investing in durable, high-quality laminate flooring options can save you from future problems and replacement costs. 
  • While the initial investment might be slightly higher than that of cheaper alternatives, the long-term benefits — such as durability, reliability, and enhanced aesthetics — make high-quality laminate worthwhile. 
  • Always remember the cost of a product often reflects its quality. 
  • Therefore, do not compromise on quality for short-term saving; consider it a long-term investment for your home.

6. Insufficient Acclimation

The acclimation process is one of the most critical but often overlooked aspects of laminate flooring installation.

The Acclimation Process and Its Significance

The acclimation process involves allowing the laminate flooring to adapt to the environment where it will be installed. 

This step is crucial as it lets the flooring adjust to your home’s temperature and humidity conditions, preventing future problems such as warping, buckling, or gaps.

Steps to Ensure Proper Acclimation

For a successful acclimation process, follow these steps:

  1. Store the unopened laminate flooring packages in the room where they will be installed for at least 48 to 72 hours before installation.
  2. Lay the packages flat, away from any heat sources or direct sunlight.
  3. Maintain the room’s temperature and humidity at the level it is most likely to be at when the home is occupied.
  4. Use a hygrometer to check room conditions throughout the acclimation period.

Solution: Adequate Acclimation Period

  • The solution to potential laminate flooring problems due to inadequate acclimation is simple: ensure a proper acclimation period. 
  • Spending the necessary time on this step will ensure the longevity and aesthetics of your laminate flooring, saving you from future complications and costs. 
  • Like investing in high-quality materials, taking the time to acclimate your flooring correctly is essential to your home’s beauty and durability.

7. Loose Edges or Joints 

Improperly connected edges and joints can significantly affect the longevity and visual appeal of your laminate flooring. 

Improperly Connected Edges and Joints Can Lead to Separation

Improperly connected edges and joints can lead to the separation of the laminate flooring. The edges may lift over time if the planks are not securely fastened during installation. 

This is often due to stresses from foot traffic, shifting furniture, or changes in temperature and humidity, leading to unsightly gaps and potential hazards on your floor.

Detecting Loose Areas 

Detecting loose areas in your laminate flooring requires a careful and detailed examination. 

Listen for a hollow sound when you walk over the floor, and look for any visible gaps or lifted edges. 

Additionally, pay attention to the flooring’s feel underfoot. It may indicate a loose edge or joint if it feels unstable or uneven in certain areas.

Solution: Reconnecting and Securing Loose Edges and Joints 

  • Addressing loose edges and joints involves first determining the cause of the problem. 
  • If it’s due to improper installation, you may need to reconnect the planks correctly. 
  • Carefully lift the affected plank, apply an appropriate laminate flooring adhesive, and then reposition it, ensuring it fits snugly with its neighboring planks. 
  • For severely damaged planks, replacement may be the best option. 
  • Always remember, it’s crucial to address this issue promptly, as neglecting loose edges or joints can further damage your floor.

8. Heavy Furniture or Objects 

The weight of heavy furniture or objects can potentially cause damage to laminate flooring. 

This damage can be in the form of scratches, dents, or even cracks resulting from moving or dragging these heavy items across the floor’s surface. 

Static heavy loads can also lead to indentations or depressions in the floor over time, particularly if the weight is concentrated on small or pointed contact areas.

Protecting Laminate Flooring from Heavy Loads

Protecting your laminate flooring from heavy loads is essential in maintaining its longevity and aesthetics. 

Consider spreading the weight of heavy furniture or objects over a larger surface area to avoid damaging your flooring. 

For instance, use wide-load-bearing legs on furniture or distribute the weight of heavy objects across a wider area. 

Additionally, avoid dragging heavy items across the floor. Lifting the item or using a wheeled platform can prevent scratching or gouging the floor surface.

Solution: Using Furniture Pads and Sliders

  • As part of the solution, consider using furniture pads and sliders. 
  • Furniture pads can be used beneath the legs of heavy furniture to distribute the weight more evenly and prevent indentations. 
  • They also reduce the risk of scratches when the furniture is moved. 
  • Furniture sliders are particularly useful when you need to move heavy items. 
  • They are placed under the furniture legs, making it easier to slide the object across the floor without causing damage. 
  • Always lift heavy furniture or objects when moving them, even with sliders, to avoid dragging them across the floor, which could lead to scratches or more severe damage.

9. Wear and Tear 

Over time, normal wear and tear can affect the appearance and durability of laminate flooring. 

This can include small scratches, dents, or fading from sunlight exposure, all considered typical aging processes for this type of material.

Normal Wear and Tear Over Time

Despite the robustness of laminate flooring, it’s not immune to the effects of time. 

Constant foot traffic, exposure to sunlight, and inevitable accidents such as spills or drops can slowly degrade the appearance of the flooring. 

This gradual wear often presents as surface scratches, slight color fading, or minor dents.

Identifying Worn Areas

Identifying worn areas in laminate flooring can be critical for early intervention and prevention of further damage. 

Look for sections where the texture and color of the surface have noticeably changed, areas with scratches or dents, or places where the flooring has started to warp or bulge. 

Check beneath furniture and rugs, as these are common hidden wear and tear areas.

Solution: Replacing Damaged Planks or Sections

  • For areas of severe wear or damage, replacing the affected planks or sections of the laminate flooring may be the best solution. 
  • Start by identifying the damaged plank and, using a circular saw or utility knife, carefully cut and remove it while ensuring that it does not to damage nearby planks. 
  • Then, prepare the new plank by cutting it to the correct size and removing any tongue portions that impede its installation. 
  • Finally, apply a suitable adhesive to the subfloor or the plank itself, and carefully place it into the vacant space, ensuring it fits snugly with its surroundings. 
  • Remember to clean any excess adhesive before it dries and apply weight to the plank until the adhesive sets.


To wrap up, we’ve explored nine primary causes of laminate floor separation, ranging from moisture and improper installation to incompatible underlayment and temperature fluctuations. 

The gradual wear and tear over time can also not be overlooked. Understanding these causes is the first step towards efficient and effective laminate flooring care.

It’s essential to address these issues promptly to prevent further damage and ensure your flooring continues to look its best. 

Early identification of worn or damaged areas allows for timely intervention, potentially saving you time and money in the long run.

Regular maintenance, such as routine cleaning and immediate attention to spills, can significantly extend the lifespan of your laminate flooring. 

However, don’t hesitate to seek professional assistance, especially for more severe or extensive damages. 

Experts can provide accurate assessments and solutions that may be beyond the scope of DIY efforts.

Finally, when properly cared for, laminate flooring is incredibly durable and aesthetically pleasing. 

It offers the beauty of natural wood or stone without the high cost or complicated maintenance. With the right care and attention, your laminate flooring can serve you well for many years.


Hi! I’m Kobby, one of the co-owners of favoredstoneguides.com 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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