Will Dehumidifier Dry out Your Damp Walls?

Damp walls…Though it is a common problem in every household, we might felt a little awkward during the guests’ visits, Isn’t it? Will Dehumidifier Dry out Damp Walls?

The main reason for this problem is dampness i.e moisture. And we all know that the use of a dehumidifier removes moisture.    

On that note, why can’t we use a dehumidifier to get rid of dampness on the wall? Logic right.

But, the point is “Will dehumidifier dry out damp walls?”

As per the research, “Yes, we can dry out the dampness on the walls with the help of a dehumidifier. By placing the portable dehumidifier against the wall with high speed will definitely remove the dampness on the walls”

I know that you are here to find a solution for your damp walls. If yes, you have reached the right platform.

This article will let you know about the details of damp walls in-depth. So, without any delay let’s get started by scrolling down.

let us start the article with how efficiently the dehumidifier works in removing the dampness on the walls…

damp walls

How Dehumidifier Dry Out Damp Walls? 

To find an answer to this question more effectively, it is better to be aware of the dehumidifier working first…

The working of a dehumidifier involves mainly some components like 

Compressor: This component is used to convert the low-pressure liquid to high-pressure liquid, which results in making the fluid colder.

Refrigerant: The fluid which is used in both hot and cold coils.

Cold Coils: It is a set of coils, which allow the cold fluid to pass through it.

Hot Coils: It is also a set of coils, which allow the high pressured i.e hot fluid to pass through it.

Fan Motor: This device consists of 2 fans which are fixed either end it.

The process of dehumidification starts by taking the air inside the room by the moment of the fan motor in it.

Taken air is then passed through the cold coils. Here the moisture present in the air is then condensed i.e converting the vapor to liquid takes place. The condensed liquid id then gets dropped off from the cold coil and drains out through a drain line.

The moistureless air is then passed through a heating coil which makes the air drier.

Moisture less/dried air is then passed through the fan which is fixed at another end and blows outside into a room making the air moistureless.

However, in the case of damp walls dehumidifying, the moisture content in the damp area is also gets sucked by the device and condensates the moisture into the water and lets out through a drain line.

This is how a dehumidifier takes off the moisture from the damp walls and dries it off.

You can also refer to the below video for better understanding…

We can find a solution for anything only if we know the cause behind the problems. So, let us know how these damp walls form…

How Damp Walls forms?

Dampness on the walls is caused due to the excess amount of humidity/moisture in the room. Damp walls occur when there is no escape for the excess moisture to escape and then results in the penetration of walls with the moisture which damages the walls. 

There might be many reasons for the occurrence of excess moisture. Some of them are, drying clothes inside the room/home, cooking, dripping off water from roof and pipes, basements condensation….etc

Knowing the reasons behind it, but how we figure out the dampness on the walls…

Signs of Damp Walls:

If you are not aware of how the damp walls look like then check the walls if you find any,

  • Cold or wet feel from walls
  • Musty smell
  • Paint peels off
  • Marks of patches
  • Dark or black spots
  • Mold/mildews formation

After finding these signs then it’s time for you to get rid of it. If you have a dehumidifier then place it against the wall if it is possible or switch on the dehumidifier in your room to the high speed.

Reacting immediately to the problem is not as difficult as preventing it with simple steps. So, try to prevent this problem with the following prevention measures.

How to Prevent Damp walls?

Try to follow these preventive measures to avoid the dirty damp walls.

Coat the walls with waterproof paint during the first layer of paint or try to adopt a damp proof course.

Dry your wet clothes outside in the sun.

Seal the crack and holes if you found any on the wall.

Decrease/set the dripping off water pipes with proper sealing

Try to maintain your home with less humidity than usual

Clean/vacuum the mold and mildews as fast as possible

It is to say that the damp walls can also cause some health issues when they are not identified properly. This can be a huge problem for those who are suffering from asthma and other breathing problems.


Hereby concluding, that problems can be prevented and eliminates completely only if it is under proper and regular maintenance. The cost of maintenance may or may not be high but the consequences it gives will more damages and cost than maintenance. So, try to maintain the walls with regular maintenance.

Frequently Asked Questions:

Q) Should I use a dehumidifier in the winter? Yes, it is a good idea to use a dehumidifier in winter as the amount of moisture in the air is high in the winter season. As a rule of thumb, we can use a dehumidifier if the moisture content is more than 50%.

Q) Can a dehumidifier make a room warmer? Yes, the air taking from the room is less hot than the air releasing back into the room. The air which comes from the dehumidifier might be in the range of 10 to 15 degrees.

Q) Will a dehumidifier kill mold? No, it cannot kill the mold but it reduces the environment which is best for the mold’s growth like removing all the moisture from the mold surrounding. But we need to clean the molds as soon as we found it.

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