Benefits: Cut Condensation


Efficient windows do more than cut energy costs – they also make homes more comfortable. One of the ways they do that in cold climates is by reducing the amount of condensation on the inside of windows. Condensation forms when the temperature of a window’s interior surface is colder than the air inside. It can lead to mold and mildew inside a house and block views.

When selecting windows for cold climates it is important to consider the Condensation Resistance Rating, an optional rating found on the NFRC label affixed to new windows that have been certified by NFRC. On a scale of 1-100, a higher rating leads to less condensation. In a colder climate, a much higher rating is appropriate compared with what is required in a warmer climate. Click for more about this rating.