Low Emittance Windows
				Superior Replacement Windows "Free Estimate"  Name:  Address:  City:        State:  Phone:  email:  Comments: What can we do for you?
		Cold Weather In cooler conditions, the Low-E coating reflects heat back into your rooms, while allowing a high level of visible light to pass through and be absorbed, adding extra heat to the room. Hot Weather In warmer conditions, the Low-E coating reflects away both solar radiation (direct heat from the sun) and absorbed heat energy (such as heat from a driveway), yet still allows visible light to pass through. Low-Emittance Windows offer balanced heating and cooling performance for optimum energy savings in a wide range of climates. Low-E windows tend to be branded with different names, depending upon their manufacturer. However, all Low-E windows operate on the same principle. Low-emittance (Low-E) windows have coatings of metal oxide deposited on the glazing surface, reducing the U-factor by suppressing the radiative heat flow. Low-E windows are double paned and sometimes manufacturers add argon (a clear, invisible gas) between the glass layers to further suppress the radiant heat. Different types of Low-E coatings have been designed to allow for high solar gain, moderate solar gain, or low solar gain. High solar gain windows perform better in the winter, while low solar gain windows perform better in the summer. Yearly energy savings are influenced by the house design and operation.