Low E – Glass, has a thin silver coating applied during the glass manufacturing process, which allows the microscopic coating to fuse onto the hot glass. The Low-E coated glass is placed on the inside facing pane within the insulated double glazed window unit.
With this coating, U Values, like an R value, which is a number given to a window unit based on how much heat loss it allows, are reduced with Low-E glass being between 2.5 to 5 times more efficient than uncoated double glazed windows.
Low-E insulated glass units have very little negative impact on visible light transmission and allow large amounts of free solar energy to enter the building. By adding a thermal spacer and filling the unit with argon gas, you significantly increase your insulation performance on a standard window unit.
Low-E coating technology offers energy efficiency and can play an important role in the overall performance of a window, significantly affecting the overall heating, lighting, and cooling costs of your home.
If you are thinking about building, talk to us about upgrading your joinery to one of our higher spec energy efficient options.