What Is Low-E Glass and How Does It Work?

Low-E glass uses a microscopic coating to reflect heat while letting in natural light, improving comfort and energy efficiency year-round.

What Is Low-E Glass and How Does It Work?

Window Glass Technology

What Does Low-E Glass Do?

Low-E (low-emissivity) glass uses a microscopic coating to reflect heat energy while still allowing visible light to pass through.

This helps regulate indoor temperatures by keeping heat where you want it—inside during colder months and outside during warmer months.

In heating-dominated climates, the right Low-E package can improve comfort without making the room feel dark or cave-like.

Why It Matters

  • Reflects heat while maintaining natural light.
  • Helps improve year-round indoor comfort.
  • Supports energy efficiency in both heating and cooling seasons.
  • Can reduce the need for heavy window coverings.

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