The right windows and doors can help make a home feel great, last longer, and operate more efficiently. But to choose well, its important to understand the role of low-emissivity (Low-E) glass coatings, including how they work, the benefits they provide, and the options available to achieve the right level of performance. Consider this your primer.
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UV Protection: While primarily focused on thermal insulation, many Low-E windows also block a significant amount of UV radiation. However, the extent varies based on the type of Low-E coating used. Enhanced Comfort: By reducing heat transfer, Low-E glass helps maintain a more consistent indoor temperature, making spaces more comfortable year-round.
DIY & REFERENCE A Guide to JELD-WEN Low-E Glass Options Explore our energy-efficient glass selection for windows and doors. Our windows and doors are available with a variety of Low-E glass types, each one engineered to satisfy project requirements, increase energy savings, and deliver year-round comfort in temperate or extreme climates.
So, what is Low-E glass? It stands for low-emissivity glass. Its regular glass with a thin, invisible coating that changes how heat and light move through windows. Low-E glass keeps heat inside during winter. It blocks solar heat in summer. It also filters harmful UV rays while still letting in natural daylight.
How Low-E Windows Work. The e in Low-E stands for low thermal emissivity, which is a fancy way of saying they reduce heat transfer. (You want this June-August.) The inside of the glass is coated in microscopic layers of metallic oxides that reflect heat back to its source.
Low-E warps Siding. Applied to windows, a low-E coating is meant to reflect the suns hot rays, keeping homes cooler and reducing the burden on air conditioners.
