When selecting windows for your home, it's important to consider what type of glazing or glass you should use to improve your home's energy efficiency. Based on various window design factors—such as window orientation, your climate, your building design, etc.—you may even want different types of glazing for different windows throughout your home.

There are many types of glazing available for windows, especially since many glazing technologies can be combined. These window glazing technologies include the following:

Gas Fills
Heat-Absorbing Tints
Insulated (Double-Glazed, Triple-Glazed)
Low-Emissivity (Low-E) Coatings
Reflective Coatings
Specially Selective Coatings