Low-emissivity (Low-E) glass has a microscopic coating that reflects heat while letting visible light pass through. In a sunny climate like Southern California, that helps keep interiors cooler on bright days while still enjoying natural light.
Low-E coatings also help reduce the UV rays that fade furniture, flooring, and artwork over time — a real benefit for homes with strong sun exposure.
Paired with double-pane construction and an insulating gas fill, Low-E glass is one of the most impactful upgrades you can make for comfort and efficiency.