Why is my oak floor buckling?

Author: Keyon Kunze  |  Last update: Thursday, April 24, 2025

Hardwood is a naturally porous material that easily entraps moisture, causing damage to your floors. When exposed to water, hardwood begins to swell so that the added moisture can be accommodated. This expanding of the floor and shrinking when the moisture leaves the hardwood can lead to its warping and buckling.

Will buckled hardwood floors go back to normal?

depends on how much the buckling is but outside of resanding the entire floor, there is no easy solution. Wood buckles and will not return to its previous state. Its wood.

How to stop hardwood floors from buckling?

Regular Maintenance Tips
  1. Clean Spills Immediately. Water is the enemy of hardwood floors. ...
  2. Avoid Wet Mops. While it might be tempting to use a wet mop for quick cleaning, it can introduce too much moisture to the wood, causing it to swell and buckle. ...
  3. Use Rugs and Mats. ...
  4. Regular Inspections.

How to fix a warped oak floor?

Identify the Cause: Check for moisture, leaks, or humidity issues. Small Warps: Wet the wood, place a heavy object, and wait a few days. Large Warps: Replace the damaged boards with new ones. Entire Floor Warping: Consult a professional contractor, especially if subfloor damage is suspected.

What is a common cause of buckled hardwood floors?

Most damage occurs when floors are consistently exposed to water. Changes in temperature: Wood naturally expands in the hot humidity and contracts in the cold. If you live in an area with extreme temperatures, you might notice buckling wood floors in the summer.

Why are My Wood Floor Buckling

How do you flatten a buckled hardwood floor?

One of the first things to do, when you notice signs of buckling and warping in your hardwood floor is to determine the extent of the damage. Minimal buckling can even be repaired by just placing a heavy weight on the buckled area and forcing it to settle back into its space.

Does homeowners insurance cover buckling floors?

Many homeowners are facing hurricane-related water-damaged floors this year, so if you're looking at buckling hardwood or bubbling laminate, you're not alone. Most homeowners don't realize that insurance will likely cover their floor's water damage.

What does a buckled hardwood floor look like?

The most common signs of buckled hardwood flooring are cupping and crowning. Lifting is the hallmark of extreme buckling and typically will only occur after a major water catastrophe like flooding.

How do you flatten warped oak?

If your worktop has warped upwards, the solution is relatively easy. Simply place a large weight across the bowed section of the worktop; this will cause the surface to return to its original shape gradually.

Why is my oak flooring lifting?

This expansion and contraction process is entirely normal with solid wood flooring. In a domestic setting, particularly in centrally heated homes, floors expand and contract with the seasons. During winter months, when you switch the central heating on, wooden floors lose moisture and will contract.

Why does my wood floor buckle in the summer?

The hotter temperatures cause the wood to expand. This expansion can put a lot of pressure on the floor, causing it to buckle. But, as the temperature cools in the evening, the wood contracts, creating gaps between the boards. Over time, this can cause the floors to warp and become uneven.

How do you flatten a swollen hardwood floor?

Here are the steps you can follow to fix a water-damaged, swollen wood floor:
  1. Step 1: Identify the source of water. ...
  2. Step 2: Remove standing water. ...
  3. Step 3: Dry the area and Assess. ...
  4. Step 4: Sand the swollen areas. ...
  5. Step 5: Apply wood conditioner. ...
  6. Step 6: Apply wood glue or epoxy. ...
  7. Step 7: Sand and refinish.

How do you stop wood from buckling?

To prevent wood warping, ensure your stored wood is:
  1. In a well-ventilated area.
  2. In a cool, dry location.
  3. Not exposed to direct sunlight.
  4. Lying flat and slightly off the ground to prevent water damage.

Why is my floor bulging upwards?

Have you noticed your floor bulging upwards? This common issue can be caused by factors like moisture damage, poor structural support, foundation issues, or improper installation.

Will cupped hardwood floors flatten out?

In many cases, floors with minor cupping will flatten out once the underlying moisture issues have been addressed.

How long does it take for hardwood floors to warp?

In the initial hours following water exposure, the wood may start to swell and warp. You might notice cupping, where the edges of the planks curl upward, or crowning, where the center of the planks becomes elevated.

Will weight unwarp wood?

To flatten a warped piece of wood, apply moisture to the concave side and then place weight on the convex side, or clamp it in a flat position. Heat can also help—use an iron or steam to soften the wood fibers before applying pressure.

Is Oak prone to warping?

Some timber species are more prone to warping than others. Hardwoods like Oak and Silvertop Ash are generally more stable, while softwoods like Pine and Cedar are more susceptible to warping due to their higher moisture content and softer fibres.

Can humidity cause hardwood floors to buckle?

During the summer, all wood floors tend to expand because wood reacts to moisture. Air with a high moisture content (MC) or high relative humidity (RH) causes wood to gain moisture. Extreme moisture can cause cupping (when the edges raise higher than the middle of the wood planks) or even buckling.

What is the difference between cupping and buckling floors?

Buckling is like the opposite of cupping, bowing upward into a peak instead of inward, and sometimes even lifting off the flat underlayer surface. Buckling hardwood floors occur when there is excessive moisture, caused by flooding or a build-up in moisture from, say, your basement's concrete slab subfloor.

Why is my hardwood floor crowning?

A crowned wood floor is another problem that is usually the result of a moisture issue. Crowning is typically a problem that is a direct result of cupping.

Will insurance pay for water damage to a wood floor?

Homeowners insurance generally covers water damage that's sudden and accidental. For example, if a pipe bursts or a washing machine overflows and damages your floor, you may be covered. But if the water comes from flooding, standard homeowners insurance typically won't cover it.

How to fix hardwood floor water damage?

Once you have prepared, follow these steps to restore your water-damaged wood floors:
  1. Step 1: Remove excess water. ...
  2. Step 2: Dry the area. ...
  3. Step 3: Sanding the Floor. ...
  4. Step 4: Filling Gaps and Cracks. ...
  5. Step 5: Staining the Floor. ...
  6. Step 6: Applying Finish. ...
  7. Step 7: Polishing.

Is tree root damage to foundation covered by insurance?

If the foundation damage is due to negligence, your insurance won't cover the repair cost. It's your responsibility to take preventive measures to keep moisture from accumulating or tree roots from causing damage to the structure. These covered perils include: Tornados, windstorms, and hailstorms.

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