Why Your Windows Are Sweating Indoors and How to Fix It

September 27, 2022

The windows of your home are a portal to the outdoors, a way to let light in when you appreciate the view of your garden, yard or other surroundings. The last thing you need to see is a sweaty window coated in a coating of condensation.

Not only are windows coated in condensation unappealing, they also can be evidence of a more substantial air-quality problem within your home. Luckily, there’s numerous things you can attempt to correct the problem.

What Creates Condensation along Windows

Condensation on the inner layer of windows is formed by the damp warm air inside your home mixing with the colder surface of the windows. It’s notably prevalent in the winter when it’s much cooler outside than it is inside your home.

Inside Moisture vs. In Between Panes

When talking about condensation, it’s necessary to understand the contrast between moisture on the inside of your windows versus moisture in between the windowpanes. One is an indoor air quality issue and the other is a window issue.

  • Moisture on the inside of a window is created from the warm moist air throughout your home forming along the glass.
  • The moisture you find between windowpanes is produced when the window seal fails and moisture seeps between the two panes of glass, and at that point the window needs to be repaired or replaced.
  • Condensation inside the windows isn’t a window issue and can instead be solved by adjusting the humidity in your home. Many things cause humidity in a home, including showers, cooking, laundry or even breathing.

Why Condensation on Windows Can Be Trouble

Though you might consider condensation inside your windows is a cosmetic problem, it could also be indicating your home has high humidity. If that’s the case, water may also be accumulating on window frames, cold walls or other surfaces. Even a small film of water can cause wood surfaces to mildew or rot over time, fostering the growth of mildew or mold.

How to Decrease Humidity Inside Your Home

Not to worry, because there are several options for extracting moisture from the air in your home.

If you have a humidifier operating in your home – whether it be a small-scale unit or a whole-house humidifier – lower it further so the humidity inside your home decreases.

If you don’t have a humidifier going and your home’s humidity level is excessive, look into installing a dehumidifier. While humidifiers add moisture inside your home so the air doesn’t become too dry, a dehumidifier pulls excess moisture out of the air.

Compact, portable dehumidifiers can eliminate the water from one room. However, portable units require emptying water trays and generally service a somewhat limited area. A whole-house dehumidifier will eliminate moisture throughout your entire home.

Whole-house dehumidifier systems are regulated by a humidistat, which permits you to establish a humidity level the same as you would pick a temperature via your thermostat. The unit will begin running instantly when the humidity level exceeds the set level. These systems work with your home’s HVAC system, so you will want to contact qualified professionals for whole-house dehumidifier installation Buellton.

Alternative Ways to Eliminate Condensation on Windows

  • Exhaust fans. Installing exhaust fans in humidity hotspots including the bathroom, laundry room or above the kitchen range can help by pulling the warm, humid air from these spaces out of your home before it can increase the humidity level in your home.
  • Ceiling fans. Running ceiling fans can also keep air circulating inside the home so humid air doesn’t get caught up in one place.
  • Open window treatments. Throwing open the blinds or drapes can lower condensation by preventing the damp air from being trapped against the windowpane.

By decreasing humidity across your home and circulating air throughout your home, you can take advantage of clear, moisture-free windows even in the winter.