When is a window issue not a window problem? Depends on the weather.
Look at the picture above. You may have noticed a similar situation in your home. You can see the condensation and cloudiness collecting on the window. Some would say that this is a malfunctioning window and it needs to be replaced. Would you believe that this picture was taken in our showroom? And that it’s actually a sign of a well-functioning, energy efficient window?
Condensation inside your home is a problem. Homeowners in Wisconsin are familiar with this issue and at certain temperatures and humidity levels, it is nearly impossible to prevent. Condensation is a property of water in which water molecules in the air get cold enough to condensate, or turn into liquid water. In the winter, a homeowner will notice this occurring on the inside of their home, often leading to rotting and molding of the windows and the wood that surrounds them.
The picture above shows condensation on the casement window in our showroom. The difference here is that the water has condensed on the exterior of the window. This indicates that our window and our air conditioner are working very well. The air temperature outside when this picture was taken was almost 90°F, while the indoor temperature was 70°F and the humidity was almost 80%. This combination of varying temperatures and high humidity lead the water molecules in the air to search for the coldest place to go. In this case, the water settled on our cars, windshields, and the exterior of the windows to our building.
The lesson to take away from this is that condensation on the inside of your home is a problem, often one that can be solved by replacing your windows, but condensation on the outside is a natural occurrence, not something to worry about.