Why do basements get humid?

Humidity in your basement is a problem for many reasons. A damp basement smells and is uncomfortable, but it’s also prone to mold and fungal growth that can cause health problems. Humidity inside can come from groundwater or rainwater, moisture from inside the house, and condensation caused by temperature differences.

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!

Furthermore, are basements more humid? May says high humidity is the leading cause of mold growth in the 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 this regard, what causes high humidity in basements?

There are just three sources of moisture: Liquid water from rain or ground-water. Interior moisture sources such as humidifiers, unvented clothes dryers, bathrooms and cooking, as well as the moisture in concrete after construction. Exterior humid air that enters the basement and condenses on cooler surfaces.

How can I get humidity out of my basement without a dehumidifier?

  1. Airflow to reduce humidity:
  2. Crystal Salt as Desiccant to Absorb the Moisture:
  3. Charcoal as Desiccant to Absorb the Moisture:
  4. Silica gel as Desiccant to Control Humidity.
  5. Install Fan and Proper ventilation.
  6. Line Dry Clothes Outdoors ( In Sun ) :

Is living in a basement bad for your health?

Some health risks to people who live in basements have been noted, for example mold, radon, and risk of injury/death due to fire. Presence of mold can lead to “respiratory symptoms, respiratory infections, allergic rhinitis and asthma”, as well as personal belongings being contaminated by mold.

Will mold grow at 55 humidity?

Humidity levels above 55 percent can allow mould to grow, although levels of 70 percent are more ideal for mould growth.

Can I use a fan instead of a dehumidifier?

If the problem in your home is dampness, then a fan will only go some way to fixing it. This is because while you may have drier air being pushed in from outside, the fan won’t actually remove moisture from the air as a dehumidifier does. So if you have a particularly bad damp problem, a fan just won’t cut it.

Should I run a fan with a dehumidifier?

Yes, it is perfectly fine to run a dehumidifier together with an air conditioner and furnace filter, portable fan, air purifier, or any other air treatment appliance.

Can mold in basement affect upstairs?

If I have mold in my basement will it affect my upstairs? I don’t have a central heat and air system. Yes, in most scenarios mold issues in the lower portion of a home will affect the areas above it. This is due to the “stack affect” which is the principle of air rising inside of a home.

Where in basement should I place dehumidifier?

The basement is an ideal location to place a dehumidifier. Many basements are damp or wet due to humidity from the surrounding soil. Low water tables also contribute to basement moisture levels. Placing a dehumidifier in the basement reduces moisture that can damage the home’s structure.

Do fans get rid of humidity?

Exhaust Fans – Most homes come with exhaust fans already installed. Bathroom exhaust fans and vent fans for your stove can be key in keeping a low humidity level in your house. The increased circulation of air will do wonders for reducing humidity and evenly distributing the cooler air from your air conditioner.

Should I put a fan in my basement?

For most small to moderately sized basements, a ventilation fan on one side of the basement and an exhaust fan on the other end is suitable. The fans may be permanently installed within existing window cavities, or may need dedicated openings cut through the portions of the basement walls that are above ground.

Why is water coming up through my basement floor?

Ground Water The most probable explanation for why water is coming up from your basement floor is groundwater. This can include cracks in your floor, cracks in the wall, and yes even through the floor. Your basement floor is made of concrete, and concrete is porous allowing water to soak through it.

How do you fix a humid basement?

Remove moisture from the air with a dehumidifier. A dehumidifier isn’t a permanent solution to moisture in the basement, but it will remove excess humidity while you fix the cause of the problem. Place the dehumidifier in the dampest part of the basement and turn it on.

How do I fix water seeping through my basement floor?

Here are eight strategies to keep water out of your basement. Add Gutter Extensions. Plug Gaps. Restore the Crown. Reshape the Landscape. Repair Footing Drains. Install a Curtain Drain. Pump the Water. Waterproof the Walls.

Do basement walls need to breathe?

It behaves as a moisture trap and can also hide structural problems and cracks in the foundation. Bottom line: basement walls need to breathe too.

Why does my basement leak when it rains?

The most common causes of basement leaks is pressure created by water in the soil surrounding the foundation. During periods of heavy or persistent rain, the soil can become saturated, creating hydrostatic pressure (or water pressure) that can push moisture and water through your basement walls and floor.

What humidity grows mold?

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.