Window & Door Terms - E

Window & Door Terms - E

Egress Code

A code that requires a minimum opening of a window for a person to exit or firefighters to enter a structure.

Emissivity (Low "E")

The ratio of radiant energy (ultra violet radiation) a certain object reflects when exposed to relative temperatures. A certain percentage of the Sun's rays are refracted away from the inside of the home where Low "E" is used in windows.

Energy Star

Energy Star is an international program implemented to reduce energy usage.