laminate flooring

Why Do Bubbles Form in Laminate Flooring, and How Can You Fix Them?

Laminate flooring is a popular choice for homeowners due to its affordability, durability, and stylish appearance. However, one common issue that can arise is bubbling. If you've noticed raised or swollen areas in your laminate floors, understanding the causes and solutions can help you fix the problem before it worsens.
 

What Causes Bubbles in Laminate Flooring?

 

1. Moisture and Humidity Issues


Excess moisture is one of the biggest culprits behind bubbling in laminate floors. If water seeps between the planks or underneath them, it can cause the laminate to swell and lift. High humidity levels can also lead to expansion, especially if the flooring was not adequately acclimated before installation.
 

2. Poor Laminate Flooring Installation


Improper installation techniques can contribute to bubbling. If an inadequate expansion gap is left around the perimeter, the floor may not have enough space to expand, leading to buckling or bubbling. Additionally, using the wrong adhesive or failing to allow the flooring to settle before use can cause problems.
 

3. Subfloor Imperfections


A subfloor not correctly leveled before installing laminate flooring can cause air pockets or weak spots, leading to bubbles over time. This is why preparing the subfloor is crucial in laminate floor installation.
 

4. Trapped Air Bubbles


If an underlayment is not smoothed out correctly or glue is misused, air pockets can become trapped beneath the laminate, creating a bubbling effect.
 

5. Heavy Furniture and Impact Damage


Placing heavy furniture directly on laminate without protective padding can create pressure points that damage the flooring. Dragging heavy items across the surface can weaken the laminate and cause bubbles or separations.
 

How to Fix Bubbles in Laminate Flooring

 

Addressing Moisture Damage


If moisture is causing the issue, the first step is identifying the source. Fix any leaks or excess humidity problems before repairing the floor. If the planks are water-damaged beyond repair, replacing them is the best solution.
 

Correcting Installation Mistakes


Removing the baseboards and trimming the edges for floors that lack proper expansion gaps can allow for natural expansion and contraction. If the bubbles are due to poor adhesion, gently lifting the affected planks and reapplying adhesive (if applicable) can help.
 

Fixing Subfloor Issues


If an uneven subfloor is causing bubbles, it may require removing the laminate, leveling the subfloor with a self-leveling compound, and then reinstalling the flooring correctly.
 

Removing Trapped Air


For minor bubbles caused by trapped air, a sharp needle can sometimes puncture the bubble and apply pressure to flatten it. Adding a bit of wood glue before weighing on the area can help secure it.
 

Preventing Future Bubbling


Proper laminate flooring installation is essential to avoid bubbles from forming. Acclimate the flooring before installation, leave adequate expansion gaps, use high-quality underlayment, and ensure a level subfloor. Additionally, using area rugs and furniture pads can prevent unnecessary pressure on the flooring.
 

Say Goodbye to Laminate Floor Bubbles!


If you’re struggling with bubbling laminate floors, knowing how to address the issue can extend the life of your flooring. Whether it’s an installation problem, moisture damage, or an uneven subfloor, fixing the root cause will help restore your floors to their original beauty. If you’re considering a replacement or need expert guidance, visit our showrooms in Portland, OR; Tigard, OR; Beaverton / West Portland, OR; or Vancouver, WA. We also offer a shop-at-home service for your convenience. Contact us today to ensure your floors remain smooth and flawless!