Clera Windows + Doors Blog

Understanding Condensation On Windows: The Causes And The Remedies

Every winter, homeowners try to resolve the issue of condensation on their windows. This condensation can leading to pooling water inside the home, and can often reduce the value of the window. It’s important for homeowners understand what causes this problem and how they can resolve the issue effectively for the long-term so they can prevent unnecessary costly repairs if the damage gets too extreme.

In this article, we’re taking a look at window condensation, its causes, and the remedies for the problem.

Condensation Involves Contact between Warm and Cool Air

The condensation on home windows is formed when the warm, moist air inside the home comes into contact with cooler, dry air from the outside. While many homeowners place the blame on their window systems for the problem, condensation is a simple elemental interaction. The problem is only highlighted on windows because glass surfaces tend to have lower temperatures than any other surfaces in the home.

However, that doesn’t mean it’s supposed to happen. Double- or triple-pane windows have a layer of gas in between the panels of glass, effectively preventing this issue. If your windows are experiencing condensation, it’s likely that the seal has broken, allowing that gas to escape.

Condensation is a Modern Problem

There are more instances of condensation affecting home windows in modern homes because today’s technology is allowing condensation to build on the inside of windows, even when the window is still intact.

Insulation and high quality building materials are now designed specifically to keep cold air outside, while energy efficient home designs help retain warm air inside the home. Quality modern window products create a barrier to the outside and, when this barrier comes into contact with moisture from cooking, showers and clothes dryers, the result is condensation on the windows.

Steps to Reduce Condensation

So now we know the causes of condensation, it’s important to analyze the best options to reduce the problem. For windows that have condensation between the glass panes, a new window may be necessary.

For windows where condensation is forming inside the home, the objective is to control the level of humidity in the house, therefore controlling the moisture that would otherwise turn into condensation.

Here are some easy steps to prevent condensation:

  • Cracking open a window to air out the home after steamy showers or while cooking
  • Running exhaust fans in laundry rooms, kitchens and bathrooms
  • Opening drapes and blinds to allow the air to circulate
  • Turning off humidifying devices
  • Using a de-humidifier throughout home

Condensation is Rarely Indicative of a Structural Problem

It’s important to understand that condensation on the inside of home windows is rarely a sign of a significant issue. Serious signs of moisture problems include: mold, peeling paint and moisture spots on walls.

If these issues are recognized, it’s important to speak with a specialist as soon as possible to remedy the moisture issue.

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