Monitoring the humidity levels in your house is important to ensure that your home does not become overly humid, which can lead to excess precipitation around your home. Such a buildup of water leads to mold growth and can lead to weakening house structure if the wood in your walls becomes waterlogged. Controlling your humidity can be handled through something as simple as changing the temperature indoors.

close-up of water dripping down a gray surface
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Step 1

Check your house's humidity meter to see if you need to adjust the humidity in your home. In most temperatures, humidity up to 35 percent is safe. In temperatures below 20 degrees Fahrenheit, it is important to further reduce the humidity to as low as 15 percent.

Step 2

Look for signs of your humidity being too high. The best indicator that you need to lower the humidity in your house is excess condensation. If windows in your house are fogging up when you are not running hot water and putting water vapor in the air in their immediate area, your humidity is likely too high.

Step 3

Run the air conditioner in your house. This might seem counterproductive because lowering temperature in an area generally raises the relative humidity in the area, but air conditioners pull in water vapor as part of the process by which they create cold air, therefore they can quickly decrease the humidity in the room.

Step 4

Turn up the heat if you do not have an air conditioner, or it is too hot to use an air conditioner. While a heating system will not remove water vapor from the air like an air conditioner, relative humidity, which must be lowered to reduce condensation and the resulting damage, is inversely related to temperature, so by warming a room you make condensation less likely.