The short answer
Moisture and Water Damage
Moisture is the most frequent reason vinyl planks lift. Water seeps through seams or edges, loosening the adhesive or causing the planks to swell. Leaks from appliances, pipes, or a slab foundation can go unnoticed for weeks, allowing water to pool under the flooring.
High humidity in the air can also affect vinyl plank, especially if the subfloor is concrete that wicks moisture upward. Indoor humidity levels can rise during summer storms, so watch for signs of water damage like discoloration, bubbling, or a musty smell.
- Check under sinks and around appliances for slow leaks
- Look for water stains or warping near walls and doorways
- Use a moisture meter on the subfloor if you have one
- Wipe up spills immediately to prevent seepage
- Run a dehumidifier in damp areas such as laundry rooms or utility closets
Temperature Fluctuations
Vinyl plank flooring expands and contracts with temperature changes. When the room heats up, the planks expand; when it cools, they contract. If the flooring was installed without proper expansion gaps around the edges, the planks have no room to move, causing them to buckle and lift.
Direct sunlight through windows can heat the floor unevenly, making some planks expand more than others. This is more noticeable in rooms with large south-facing windows. If you notice lifting near windows or in sun-drenched areas, temperature is likely the cause.
Subfloor Issues
An uneven or dirty subfloor can cause vinyl planks to lift. If the subfloor has dips, bumps, or debris like sawdust or nails, the planks won't lie flat. Over time, foot traffic presses down on the high spots, causing the edges to pop up.
Concrete subfloors need to be completely dry and smooth before installation. Moisture vapor from the concrete can break down the adhesive. If you suspect subfloor problems, you may need to remove the flooring to inspect the surface underneath.
What You Can Do
For minor lifting, you can try pressing the planks back down with a heavy object and allowing them to cool or dry. If the planks are locked together, you might be able to gently tap them back into place. But if the lifting is widespread or the planks are damaged, removal may be necessary.
Start by identifying the source of moisture or heat. Fix any leaks, improve ventilation, and let the room acclimate to a stable temperature. If the problem persists, consider contacting local water damage pros for a thorough inspection.
- Turn off the water supply if you find an active leak
- Dry the area with fans and open windows
- Remove baseboards to allow expansion
- Replace damaged planks if you have spare pieces
- Check the manufacturer's installation instructions
When to Call the Pros
If your vinyl plank flooring is lifting due to water damage, the underlying moisture can lead to mold and structural issues. Ignoring the problem can cause the subfloor to rot or the adhesive to fail completely. A professional inspection can find hidden leaks and assess the extent of the damage.
The pros can also handle water extraction, structural drying, and dehumidification to get the area completely dry. They may recommend removing the damaged flooring and replacing it after the subfloor is repaired. This is often the most reliable way to prevent the problem from returning.
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Call Now (469) 698-4610Frequently asked questions
Can I just glue the lifted plank back down?
Sometimes, but only if the subfloor is dry and the plank isn't warped. Clean the area, apply a vinyl adhesive, and press firmly. If the plank is swollen from moisture, gluing won't work. You'll need to replace it after fixing the moisture source.
Will my insurance cover the repair?
Policies vary, and your insurer decides what is covered. Water damage from sudden leaks is often covered, but gradual damage from humidity may not be. Check your policy and document the damage with photos before filing a claim.
How long does it take for vinyl plank to lift after a leak?
It can happen within days or weeks, depending on the amount of water and the type of vinyl. Some planks swell quickly, while others take time. If you suspect a leak, act fast to dry the area and prevent further lifting.