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 …

Low-E coatings on glass are designed to slow radiant heat transfer. Low-E coatings reflect longwave radiation (heat) back into the structure during cooler periods.

Aug 25, 2025 · It stands for low-emissivity glass. It’s regular glass with a thin, invisible coating that changes how heat and light move through windows. Low-E glass keeps heat inside during …

Aug 13, 2025 · Low-E or “low-emissivity” glass is achieved by applying one or more extremely thin layers of metallic particles to the glass, allowing it to act like a sieve: Long wavelengths, or …

This is where low emissivity (or low-e glass) coatings come into play. Low-e glass has a microscopically thin, transparent coating—500 times thinner than a human hair—that reflects …

Jun 20, 2023 · Low-E, or low-emissivity, glass was created to minimize the amount of infrared and ultraviolet light that comes through your glass, without minimizing the amount of light that …

Aug 29, 2025 · What is Low-E Glass? Low-E is the short-hand term for “low emissivity.” Low emissivity glass helps reduce the amount of infrared and ultraviolet light that flows through …

Nov 19, 2020 · To reduce the effects of heat transference through the glass — as well as other harmful effects of the sun, like ultraviolet (UV) light — Low-E glass coatings were developed. …

May 22, 2025 · Low-E is short for Low-Emissivity or Low-Emittance. Low-E glass windows feature a transparent coating that’s thinner than a strand of human hair — it’s microscopic. Low-E …

Aug 4, 2025 · When homeowners ask what low-E glass in windows is, the answer starts with its advanced ability to improve energy efficiency. Low-E glass, or low emissivity glass, is …