Why is there so much humidity in my basement?

What Causes Humidity in Basements? Basements are commonly poorly insulated, which allows outside conditions, hot or cold, to have more of an effect on interior temperatures and humidity levels. If a home’s foundation is cracked or its pipes are leaking, the moisture produced can also raise the humidity levels.

What is an acceptable humidity level in a basement?

Dehumidify your basement

Mold and mildew flourish when the relative humidity level is above 80%; therefore all basements—finished or unfinished—should be kept at or below 50% relative humidity. In order to maintain that humidity level, May suggests using a dehumidifier and measure the humidity level often.

How do you fix high humidity in a basement?

5 Tips to Reduce the Humidity Level in Your Basement

  1. Open the Windows. A great way to get air circulating in the room is to open up the windows whenever you’re down there. …
  2. Keep It Clean! Storing too many items in your basement will create clutter. …
  3. Seal Up Any Gaps. …
  4. Turn Up the Heat. …
  5. Get a Dehumidifier.

Should you run a dehumidifier in the basement all the time?

The level of humidity in a basement should perform just enough to keep humidity at a safe level. Basements are more exposed to a constant source of moisture from the external environment; therefore, your dehumidifier should run very frequently. Molds tend to become a problem at a relative humidity of 60% and above.

Will a fan help reduce humidity in basement?

A fan itself won’t really help with the humidity levels in your cellar, but it will help with getting air moving into the room from other areas such as the rest of the house and outdoors. Having a fan on a low speed regularly in your basement will improve airflow – thus moving the wet air out and the dry air in!

Is 70% humidity in basement too high?

A relative humidity level of 70 percent or higher creates the perfect breeding ground for mold growth. Leaving basement mold unchecked could amount to unhealthy indoor air, causing sickness to your family and aggravated upper respiratory issues. Also, home-destroying mold could also cause costly foundation damage.

Will mold grow at 55 humidity?

Sometimes, humidity or dampness (water vapor) in the air can supply enough moisture for mold growth. Indoor relative humidity (RH) should be kept below 60 percent — ideally between 30 percent and 50 percent, if possible. Low humidity may also discourage pests (such as cockroaches) and dust mites.

Does basement humidity affect upstairs?

But humidity in the basement or crawl space affects the upstairs too. Since air flows into the upper levels of your home from the basement or crawl space, it brings the humidity from down there with it.

What is a good humidity settings for basement in the winter?

Warmer summertime air comes into your home bringing its excess humidity with it. This excess humidity in basements is often well above the recommended 30-50% relative humidity levels. Excessively high humidity levels can easily lead to mold and other problems.

How often should a dehumidifier fill up?

As a general rule of thumb you may need to empty your dehumidifiers bucket at intervals ranging from once every two days to twice a day, depending on the conditions.

How much water should a dehumidifier collect in a day?

The simple answer is that the amount of water that a dehumidifier can collect in a day is relative. It can collect between 10 pints of water to 100 pints depending on the dehumidifier capacity and humidity at your home.

When should I turn off my basement dehumidifier?

When you find the relative humidity (RH) going below the 30% – 50% range, you need to immediately switch off the dehumidifier. If there is too much dehumidification, say below 30%, it will result in the growth of several bacteria, mold, and dust mites that thrive in low humidity conditions.

Should a dehumidifier run constantly?

So to recap, run your dehumidifier unit for at least 12 hours a day. This is a good rule of thumb. Again, it’s okay if you don’t stick to this schedule every day, but be aware that the more your family runs your dehumidifier unit the fresher and cleaner it will be all year long.

Should you run a basement dehumidifier in the winter?

Because humidity levels vary throughout the year, so does the need to run your dehumidifier. During cold winter months, the air in your home is usually dry, which means a dehumidifier is not necessary.

Is 60 humidity too high for a basement?

Indoor relative humidity (RH) should be kept below 60 percent — ideally between 30 percent and 50 percent, if possible. Low humidity may also discourage pests (such as cockroaches) and dust mites. The key part that we forget when it comes to basement dehumidifier settings is the temperature.

When should I run my dehumidifier in the basement?

For now, we leave you with this simple one: use a dehumidifier during the spring, summer and early fall to keep moisture at bay, but unplug and stow it away during the winter to prevent damage to your unit.

Should dehumidifier be in basement or upstairs?

In conclusion, the best place to keep a dehumidifier most definitely is the downstairs basement or upstairs close to the stairs. This is because the basement is the most humid place in your house. If there is any other moist condition upstairs, its source must be resolved rather than placing a dehumidifier.

What setting should dehumidifier be on?

What setting should a dehumidifier be on? The best setting for a home dehumidifier is between 30 and 50%, though most people will find comfort at a 45% humidity level. There are challenges when there is too much humidity in the air, as well as when there is not enough humidity in the air.

How do I know if my dehumidifier is working properly?

Set the humidistat at the appropriate level; usually, we recommend around 35% relative humidity. After the dehumidifier has run for around an hour, check the reading on the hygrometer. If the unit is functioning the display should tally with the setting.

Why does my dehumidifier fill up so fast?

If your dehumidifier’s water basin is filling up too quickly, you probably have extra water in the air due to an issue like a cracked pipe, water leak or open crawl space. If you’re hardly getting any water in the basin, you may need to simply turn the control to a drier setting.