Why is there more humidity in the basement.?

Answer 1

The basement is cooler, cool surfaces attract heat or warm air.
The warm air contains water vapor (moisture, humidity)
which then precipitates on the cold surface, similar as you would take a cold pop out of the fridge, water drops will run down on it immediately.

Moisture in a basement nourishes mold, good ventilation to the outside is the only solution. A dehumidifier could also be used, but this could get expensive due to the electricity it uses.

Answer 2

Plain and simple, because basements are below ground. Ever dig a hole a few feet deep? The soil is damp as you dig down.

Concrete is porous so moisture is able to work it's way through the walls and evaporate into the air.

If you live in an area where the water table is high you will have even more moisture in the air.

Newer houses have waterproofing materials applied to the outside of the concrete walls before they back fill. This greatly reduces the amount of moisture in the air.

You can paint the walls with something like Drylok to help reduce the amount of moisture seeping through the walls.

If you are getting a white salt on the walls that indicates a lot of moisture moving through the concrete. The efflorescence is deposited by moisture evaporating.

Answer 3

I have always thought my basement was cooler then the rest of my house,could be where i live. Now that i moved to Florida no one here has basements and when you are use to a basement all your life and then none it's different.

Answer 4

It's cooler, and water is heavier than air so it goes downhill.

I have a dehumidifier to remove the moisture and help prevent mold in the basement. It does a good job.

Answer 5

Humidity, because it's laden wtih water, is heavier than air and will sink to the lowest point.

Answer 6

there is in mine too... i think it's bc there isn't as good of ventilation down there as the rest of the house & bc humidy sinks... you know, same as how heat rises.