Window condensation is one of our top three complains about existing windows. Condensation typically starts off as an irritant, but then evolves into a perpetual problem that can lead to home damage, and potentially negative health impacts. Condensation can cause wood framing and ledges to rot or grow mold and can also damage plaster. This excess moisture in your home can cause damage to your entire home, not just the areas immediately surrounding your windows.
There are three places that condensation can occur inside the home, outside the home, and in between glass panes.
Exterior window condensation is the least damaging and often occurs early in summer mornings, when the window is cooler than the dew point causing the water in the air to form small droplets. This type of condensation can occur at any time of the year and is a natural occurrence.
Exterior condensation is a good thing and is demonstrating that your windows are performing exactly as designed. Energy efficient windows are so well insulated that warm temperatures in the home are not allowed to penetrate the insulated glass and heat the exterior pane. As a result, the exterior glass temperature pane may fall below the dew point of the outside air and condensation can develop.
Exterior window condensation is not a sign of a faulty window and will evaporate as the day warms.
Ways to reduce exterior condensation:
Interior window condensation is caused by excessive moisture/ humidity in the home, and is typically seen in the winter, when the warm moist air condenses on the cold windows.
Everyday activities can add moisture to the air including, cooking, showering, washing dishes, and doing laundry.
Ways to reduce condensation in your home:
Condensation between windowpanes occurs when the spacer / seal between the panes is broken and allows air and humidity between the two panes. This can be something that first appears seasonal, but over many cycles of condensation and evaporation between the glass panes can cause the glass to slowly haze between the glass panes.
There are only two options when condensation occurs between the windowpanes.
Over the decade window technology has greatly evolved so depending on your window fixture other benefits can be observed with window replacement as well.
If you are considering replacement windows for your home, we offer high quality windows and doors. Check out our window replacement cost tool to help understand what your project may cost.