3 Tips for Checking the Humidity in Your Home

Maintaining proper humidity levels in your home is important for both your comfort and the condition of your property. Air that is too dry can contribute to dry skin, irritated sinuses, and cracking woodwork, while excessive humidity can create conditions that promote mold growth and moisture-related damage. Knowing how to monitor your home's humidity levels can help you identify problems early and determine whether a humidifier, dehumidifier, or another solution may be needed.

Purchase a Hygrometer

Hygrometers are widely available and the easiest way to get an accurate reading. Many home performance experts recommend maintaining indoor humidity levels between 30% and 50%, though the ideal range can vary based on outdoor temperatures, your home's construction, and the season. A hygrometer will allow you to monitor your humidity levels, which you should do regularly to ensure consistency. While there are other ways of indicating that your home has unregulated humidity levels, purchasing a hygrometer is the best way to get an accurate number and ensure your attempts to regulate are helpful, rather than harmful.

Pay Attention to Your Home (And Yourself)

If your humidity levels are off, your home will let you know. Do your windows have excess moisture inside? Are they sometimes foggy? Do you have mold on closet walls or room ceilings? If so, your humidity is likely too high. On the other hand, if you’re constantly getting shocked by static electricity, your flower vases need to be filled daily, and your wood or plaster is cracking, your humidity is likely too low.

In addition to your home, you may see signs of high or low humidity through your body. If your skin or sinuses are dry excessively at unusual times, the air is likely too dry. High humidity can lead to mold and even promote the growth of bacteria and viruses. If you’ve noticed changes in your health along with other signs of high humidity, it may be time to find a solution.

In Iowa, homeowners may notice humidity issues most often during seasonal transitions. Excess condensation on windows during winter, musty odors, mold growth, or unusually high cooling costs during summer can all indicate that indoor humidity levels are not properly balanced.

Perform the Ice Test

While a hygrometer is the most accurate way to measure humidity, some homeowners use the ice test as a quick way to gauge whether the air in a room may be unusually dry. Fill a glass with ice and water, stir it, and allow it to sit undisturbed in the room for several minutes. If little or no condensation forms on the outside of the glass, the air may be drier than ideal.

Keep in mind that this test only provides a general indication of humidity levels and should not be used as a substitute for a hygrometer. Also, avoid performing the test in kitchens or bathrooms, where naturally higher humidity levels can affect the results.

Frequently Asked Questions About Indoor Humidity

What is a normal humidity level in a house?

Many home performance experts recommend maintaining indoor humidity levels between 30% and 50%, though the ideal range may vary depending on the season, outdoor weather conditions, and your home's construction.

Is high humidity bad for a house?

Excess humidity can lead to condensation, mold growth, wood damage, and reduced insulation performance if left unchecked. Over time, moisture-related issues can affect both your home's comfort and structural integrity.

How can I tell if my home's humidity is too low?

Common signs of low humidity include dry skin, irritated sinuses, static electricity, cracking woodwork, and houseplants that seem to dry out quickly.

What's the best way to measure humidity in a house?

A hygrometer is the most accurate and reliable way to monitor indoor humidity levels. These inexpensive devices are widely available and can help you determine whether you may need a humidifier or dehumidifier.

If you're concerned about excess moisture, attic condensation, insulation issues, or ventilation problems, the team at Hedrick Construction is here to help.