Do you ever wonder why humidity is high in my house? Yes, we all do, but what can be the causes of high humidity in house? Can you control it?

Yes, you absolutely can. But first, you need to understand the reason for high humidity in your particular case. We have gathered common causes of high humidity in house for you to learn more about them and determine what to do about them.

Without any further ado let’s jump right onto the causes of humidity in house:


Causes of high humidity in house:

If you are feeling high humidity in your house, there can be several possible reasons for that. According to Building Science Corporation, relative humidity in a house should be in between 30% to 60%. Indoor humidity around or over 70% should be alarming.

Let’s discuss the causes of high humidity in houses now:

1. Poor Ventilation:

Proper ventilation may assist regulate humidity level of the house, which has an influence on health and home’s structure. Poor ventilation is largely responsible for high humidity levels in your house. If you suspect that this is the source of your discomfort or even health problems, like respiratory issues, the first step is to open windows and keep them open for extended periods of time for humidity control.

Bathrooms and kitchens are high moisture areas of the houses, hence there should be proper ventilation specially in these areas. You should hire a professional to take care of the ventilation system and install it for you.

2. Old or faulty air conditioning unit:

An air conditioner that isn’t dehumidifying as it should, is the most prevalent source of high humidity in the house. Your air conditioner’s evaporator coils are meant to remove humidity. The liquid refrigerant will be accepted by the evaporator, which will then be used to chill your home.

If the humidity in your home remains high even when the air conditioner is turned on, there may be an issue with the air conditioning system. Older AC units are frequently to blame for the increase in humidity, but a system that is overly large can also cause the humidity to rise. Running the air conditioner with the fan on can also significantly raise humidity levels.

3. Too much Insulation:

Yes, that’s a thing. Condensation can be caused by too much insulation. This is due to the fact that excessive insulation causes poor ventilation inside a home, which prevents humid air from going outdoors and causes it to condense on cool surfaces and walls.

4. Daily Activities:

Many of your daily activities may also be contributing to the excess moisture and humidity into your home. Cooking, dishwashing, running the washing machine, showering, sweating, and even breathing all surprisingly cause moisture to build up in your home, especially if you have a large family.


How to get rid of high humidity in house:

Now when you are aware about what is causing high humidity in your house, it is important to take care of it and bring the humidity to a normal level of 30% to 60%. Here is a quick guide on how you can do that:

1. Proper ventilation:

You should make sure that places with moisture, such as the kitchen and bathrooms, are well ventilated. When there is dampness in any room, turn on the vent fans and leave them on. If you think moisture is a problem, get some more fans. You can open a window or two if you don’t have any exhaust fans. A whole house fan can also help you with ventilation issues.

2. Dehumidifiers:

Dehumidifiers are also very effective in this regard. Most dehumidifiers are used in basements; however bigger dehumidifiers can be purchased for better results as well for a whole property. They operate best when all windows and doors are closed in a room or area. Dehumidifiers remove moisture from the air, but they must be kept at a safe distance from walls and other objects in order to maintain appropriate air flow.

You’ll also want to figure out how to lower humidity without using a dehumidifier, stay tuned and read along.

3. Monitor humidity:

In order to know the humidity level indoor, you need to monitor it. You can monitor the humidity with humidity monitor that comes built in with most models of air conditioners specially the new ones. If you air conditioner doesn’t have a humidity monitor, you can buy a humidity monitor from a nearest store or check online as well.

4. Attic Fans:

An attic fan can also help remove the hot air and humidity, especially during peak summer season. It’s a great idea to Install an attic fan if you are worried about high humidity. The attic fan will expel hot air and minimize the stress on your air conditioner, lowering your energy bills and saving you money as well.

5. Whole House Fan:

A whole house fan can also be a game changer for you in this case. Through targeted circulation, a whole house fan keeps indoor air from becoming stagnant. This keeps your home smelling fresher by removing lingering odors from pets, cooking, and other household chores.



During summer, it is extremely important to reduce excess indoor humidity in your home. This will not only help you in reducing the temperature, but also improve the wellbeing and health of your family members big time.

You can simply turn on the fan and circulate the air throughout your house. This will help to keep the humidity levels down during the summer. We highly recommend attic fans and whole house fans in this regard, whichever works best for you.

Thanks for reading this piece, we hope you learned enough facts about humidity and how to keep the healthy level in your home. Make sure to browse our website for more details on our product range, leave a comment to share your feedback as well.

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