Low-E Glass – The Key to Energy Efficient Windows

Windows are one of the key points of heat loss in many homes, so it’s important to choose ones that are as efficient as possible. Low-e glass, which is glass that has been coated in a special material that repels heat back into your home, is one of the most energy efficient window choices available today.

“Low-e” stands for “low-emissivity.” Emissivity is a term that refers to the passing of heat and UV light through glass. Standard glass windows have a high emissivity. In other words, they let the majority of UV light and heat pass through them. In the winter, this means that you lose a good portion of your indoor heat through the window. In the summer, this means that UV rays from the sun transmit heat into your home, raising your air conditioning bills. Low-e windows let less heat and UV light through, leading to lower heating and air conditioning bills.

The energy-efficient properties of low-e windows come from a coating that covers their glass core. This very thin coating is strongly bonded to the glass surface, and it does not change the look of the window. Renewal by Andersen has three low-e window products to meet any homeowner’s needs:  High Performance™ Low-E4® glass, High Performance™ Low E4® SmartSun™ glass and High Performance™ Low-E4® Sun glass. 

If you’re ready for the best energy efficient replacement windows featuring low-e glass, Renewal by Andersen Midwest can help you determine the best option for your home.

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