Causes of Floors Bulging Upwards

Causes of Floors Bulging Upwards

Causes of Floors Bulging Upwards

Appliance leaks or moisture from concrete subfloor can cause your wood floors to buckle. 
When wood becomes wet and moist, it must accommodate the moisture. 
As result, the hardwood planks swell. It would have to move upward and expand, causing the wood floor to buckle.

When laminate flooring does not have enough room to expand and contract in response to temperature changes, buckling happens. Since the floor is floating, the planks tend to shrink in cold weather and expand in heat. As a result, it is essential to take action to stop buckling.

When floor board begins to bulge, it is usually due to warping. Hardwood floors typically warp as result of being exposed to water or excessive humidity. The water causes the wood fibres to swell and shrink. severely bulged board will almost certainly need to be replaced.

Moisture build-up

The first step in repairing moisture-damaged floors is determining the source of the water. This can be caused by leaks in the kitchen, excess rainfall, or the terrain of your lot. You may also have to deal with excessive humidity in certain rooms.

The water may be trapped below the floorboards and migrate into the subfloor or wood flooring. Luckily, there are many solutions to this issue.

Improper installation

If you have noticed that your floor is bulging upwards, several possible causes exist. In some cases, improper installation is to blame. For example, a plank might be improperly fastened with insufficient or incorrect-sized fasteners.

In another case, a large expanse of the floor may be installed improperly without adequate expansion joints or gaps. All of these causes could lead to floor buckling.

Improper installation of nail-down floors

Improper installation of nail-down floors is a common problem that can lead to floor buckling. Several causes can lead to this problem, including poor subfloor construction, improper glue and gluing, and expansion gap between the subfloor and the floorboards. In addition, improper installation can make the floor buckle and look ugly. In the following paragraphs, we will look at a few of the most common causes of floor bulging upwards.

Causes of Floors Bulging Upwards

Lack of expansion gap between the floor and subfloor can cause the floor to lift and bulge. Lack of expansion gap can lead to air bubbles beneath the floor, causing it to migrate up when stepped on. Improper installation of nail-down floors can also cause floor bulging upwards. Improper installation can lead to floor bulging upwards and damage the new flooring. Improper installation of nail-down floors can also lead to soft spots in laminate.

Improper installation of electrolytic reduction cells

An electrolytic reduction cell has three main parts: an electrolyte, an electrode, and a crusty alumina layer. The electrolyte is generally a water solution, but molten salts can also function as electrolytes.

An external electrical potential attracts ions to an electrode of the opposite charge. These ions then undergo charge-transferring reactions. The electromotive force must be of the correct magnitude and polarity to produce the desired chemical reaction.


Caulk that has fallen from around window and door frames—Caulk is used to fill gaps in framing and seal around doors and windows. It keeps out water and air, but there is a chance for it to fall out. The caulking may slide a bit along the framing, but if it falls out then that means there are problems with the caulking or the framing material itself.

How to Fix Wood Floor that is Lifting

Many homeowners have seen their wood floors lift, crack, or buckle over the years — a problem that can often be fixed without needing expensive repairs. Here’s how to fix a wood floor that is lifting on your own.

Mechanical problems with wooden floors start when moisture causes movement in the wood and rots pieces at the bottom of the floor become loose and cause uneven gaps as they rise and fall throughout the day.

This causes uneven pressure on recessed elements like electrical outlets, light fixtures, ceilings, shower stalls, and sinks. Many homeowners and contractors are surprised that a simple, inexpensive solution like fiberglass mesh can stop wooden floor warping from ever happening again.

When hiring a flooring contractor to fix your wood floors, you want the best quality products and services to repair your floors without having to pay thousands of dollars in unnecessary expenses. You also want them to be upfront on what they will cost you and when they are done.

What causes Hardwood Floors to Bulge Upwards ?

One of the most common problems that plagues homeowners is their hardwood floors swelling up. Usually, this is a sign that termites have infested the house or there is a possible water leak as discussed above. However, it is also possible that the bulging of your hardwood floors is due to some other external cause, such as mice and what we like to call “rat trap walls”.

what causes hardwood floors to bulge upwards ?

The reason why we prefer to call these walls “rat trap walls” is because they are often thin wails that are constructed in order to keep a rodent from entering the house. In most cases, rodents will simply chew through these traps in an effort to enter the house. Of course, this process can be far more complicated than simply chewing; so it is possible for rats and mice to trap themselves against this wall by climbing up the side of their own bodies.

Why Do Rat Trap Walls Make Your Hardwood Floors Bulge Upwards ?

As we mentioned earlier, rodents like to chew through any obstacle that they can find. This includes walls, floors, and even ceilings to get through the structure. What rats are going to find next is the wood of their floorboards. Rats will chew away at their hardwood floors until they can get into where they need to go. This means that the hardwood floorboards are the first thing in their way before entering your house.

You will notice that your hardwood floorboards are not the only things in your house that have been chewed on. The doors, windows, pipes and various electrical appliances have also been chewed by these rodents. This is why so many people are surprised to find both the outside of their home as well as their hardwood floors bulging upwards.

The best way to avoid this problem is to prevent rodents from gaining access to your homes in the first place. This means covering all of your entrances and digging holes into which you can throw poison or glue traps for rodents.