Why Are My Windows Fogging Up?

Foggy windows are a common problem in homes. In addition to being unsightly, a foggy window can cause significant problems. It can cause moisture buildup on the inside of your windows, which will eventually ruin the wood parts of the window or lead to rotting on window sills. Fogged windows also act as a path for mold to accumulate and negatively affect the air quality of your home. Below, we’ll discuss the leading causes of fog in windows and how to fix them.

What Causes Windows To Fog Up

So, what causes glasses to steam indoors? And why does this seem to happen most in the morning? The answer lies in your window seals. Fog is created when the temperature of a surface is lower than that of water vapor present in the surrounding air. When warm, moist air meets a cold surface (which causes heat to be lost), condensation occurs on that surface. Compromised or broken window seals allow moisture to accumulate between the glass panes of windows.

Common Fixes for Fogging Windows

Windows are an essential part of every home, but they can also be problematic without maintenance. If you notice condensation in your windows, use some of the tips below.

Get New, Energy-Efficient Glass Windows

Contact a professional window company to consult with you about new energy-efficient glass that blocks out moisture before it detrimentally affects your indoor air quality.

Use a Dehumidifier

Sometimes, windows fog when it’s humid outside but cool indoors. Using a dehumidifier indoors during the warmer months can reduce humidity and, as a result, window fog.

Open a Window or Door

If humidity isn’t the culprit, perhaps it’s a lack of airflow. Opening a window and door on opposite ends of the home will allow air to flow through naturally. Besides, fresh air isn’t such a terrible idea.

Use a Ceiling Fan

Similar to the point above, poor airflow may be the problem. If you don’t have a dehumidifier, turn on your ceiling fan. During the summer, the outside air will be significantly warmer than the air in your home, resulting in fog accumulation. Circulating the air in your home may help resolve this problem.

Frequently Asked Questions About Foggy Windows

Do I need to replace my window, or can I replace the fogging portion?

Consulting a professional window installer is the first step for answering this question. They can assess if replacing the window or the glass will give you the best value.

What causes the insulated glass in my window to fog?

Moisture can seep in between the glass panes when the seal is compromised. This moisture condenses on the interior surface between the panes, evaporates, and leaves behind mineral deposits.

What puts my windows at risk of fogging?

Actions that can affect the life span and performance of your windows include:

• Frequent exposure to UV and infrared light
• Pressure washing with solvents that contain bleach
• Window tints or films
• Window designs that don’t lock out moisture or that don’t have the proper weep holes
• Not caulking windows regularly
• Avoiding the use of harsh chemicals when cleaning

Get Started With a Consultation

Unfortunately, the number one cause of fogged windows is a broken seal, which requires an expert. Quality Window & Door supplies the Maryland, DC, and Northern Virginia area with quality window insulation and replacement services you can count on! Contact us at 800-370-8751 to receive a free quote and get started on your home improvement project!