CONSUMER PREFERENCES: 

As the world “goes green,” more emphasis is placed on discovering and implementing solutions that make us less dependent on energy. The fundamental technical challenge is to produce technologies that are so efficient that they can convert the window from a net energy drain to energy neutral, and then to a net energy gainer. In order to reach these goals, windows need better static properties, such as a much lower U-value, which is the value assigned by NFRC based on independent research.

VALUES AND RATINGS: 

The U-Factor, or U-Value measures how well a product prevents heat from escaping. The rate of heat loss is indicated in terms of the U factor of a window with a range between .20 and 1.2. The lower the U value, the greater the windows resistance to heat flow and the better its insulating value.

The R-Value is the insulating value, which is an inverse of the U value. This R-Value rates how well a product keeps heat or cold air out of a building.

The Solar Heat Gain Coefficient—“SHGC,” measures how well a product blocks heat caused by sunlight. It is the fraction of incident solar radiation admitted through a window, (both directly transmitted and absorbed) and subsequently released inward. It is expressed as a number between 0 and 1. The lower a window’s SHGC, the less solar heat it transmits into the home. [From the National Fenestration Ratings Council QQ]

THE COMFORT WINDOW TESTING RESULTS: 

We have received independent test results from Bill Hunt, a certified Energy Auditor with Energy Doctors, showing our inserts easily outperform single pane windows in reducing energy loss, and register remarkable energy loss savings even against double-paned Low-E windows.

 

 

BELOW: Test results on a double pane Low-E window vs. a double-pane window with The Comfort Window insert showing with 124° test site, a double pane window registered an 80" temperature, while our Comfort window showed an impressive 68°.