Low E Energy Efficient Windows: Guide to Energy Savings and Comfort
Replacing your home's windows with ENERGY STAR qualified windows will improve indoor comfort and filter out damaging ultraviolet light, while potentially saving you hundreds of dollars a year on heating and cooling costs.
What is Low-E Glass?
Low-E glass is window and door glass with microscopic, generally transparent coatings (Low-E coatings) that help to improve energy efficiency. These coatings can help block the sun's heat in summer and prevent heat from escaping in winter.

Benefits of Low-E Glass for Energy Efficient Windows
- Improved Energy Efficiency: By reducing heat transfer, Low-E glass helps to conserve energy and minimize energy bills.
- Reduced Heat Loss and Gain: In the winter, Low-E glass prevents heat from escaping, while in the summer, it reflects the sun's heat, reducing heat gain.
- Increased Comfort: Low-E glass helps to regulate the temperature inside your home, providing a comfortable living space for you and your family.
- UV Protection: Low-E glass protects your home's furnishings from damaging ultraviolet rays, preserving their color and preventing fading.
- Environmental Benefits: By reducing energy consumption, Low-E glass helps to minimize greenhouse gas emissions, contributing to a more sustainable environment.