The R factor measures the resistance of the insulated glass unit to heat flow. A high R factor window has a greater resistance to heat flow and thus a higher insulating value than a window with a low R factor.

U value is a measure of the rate of non-solar heat loss or gains through a material or assembly. Tests are usually performed under conditions that simulate 0 degrees outside and 70 degrees inside with a 15mph wind. The lower the U-value, the greater a window's resistance to heat flow, and thus the better its insulating value. Also, the U-value can be determined as the inverse of the R-factor.

Please remember that your windows are custom-made for an exact fit into the existing opening in your home. The meticulous work is performed in the factory, making the installation process less disruptive and time-consuming. Most jobs require only one to two days to complete. Dave will be able to advise you on this when he visits you to perform an estimate.

There are a few helpful things that you can do prior to your installation. For instance, if you can, please remove draperies and blinds from the windows being replaced, and when possible, move any furniture that might be near the window being replaced.

ee-z-kleen is an advanced, protective glass treatment that is factory-applied to all of the glass surfaces of your windows. This treatment makes your windows "hydrophobic." It means they become dust and water-repellent. This makes them considerably easier to clean than regular windows.

The super spacer system is a thermoset-foam, non-metallic spacer system that provides some of the very best performance in the industry. It provides additional energy savings, sound protection, condensation resistance, and unsurpassed durability.

Dave believes these products complement his business better than any other brand available. All windows and doors installed by us have proven durability, and excellent cold-weather performance, and include options to fit almost every situation.