How cold weather affects window glass

In the Midwest, we experience a wide range of temperatures ranging from very hot in the summer to very cold in the winter. Whether you realize it or not, these elements affect window glass differently. Below we will discuss how cold weather affects window glass and how we can help if you’re experiencing moisture issues. 

How are windows constructed?

Insulated glass or “IG units” consist of at least two lites of glass (sometimes more lites) separated by a sealed air space that are installed in your home windows. These insulated glass units work to improve thermal performance by keeping heat in during colder weather and keeping heat out in the warmer weather.

As the window weathers, the seal can degrade, allowing moisture to get in between the window glass panes, causing a “failed unit”. A failed unit means you have a broken seal in your IG unit and air can escape or get in, thus eliminating the insulating factor.

 

How do I know if I have a failed unit/broken seal? 

Regular inspection of your home windows is an important part of home maintenance. Fortunately, you can do this by simply observing your windows. Condensation that can be wiped off relates to moisture and humidity in the home and should be cleaned off as well to avoid window frame and drywall damage. Condensation that you cannot wipe off is cause for concern and should be addressed in order to restore your window’s thermal performance.

 

It is generally acceptable to have just the glass replaced in a failed window unit. Carmel Glass & Mirrors can reuse your wood or vinyl window stops, remove the window glass unit, and install with a new glass unit. We can also offer solutions such as our low-E and/or reflective coatings to improve energy conservation!