What is SunCoat® and SunCoatMAX® Low-E Glass?

Low-E means ‘low emissivity’ and describes glass that has a solar control coating to improve thermal performance. Glass coating technology has helped create more energy efficient windows over the years. A thin coating is applied to one side of the glass to reflect heat toward the outside in the summer and keep heat inside the building in the winter. As a result, homes with Low-E glass windows and doors enjoy more consistent temperatures year-round for comfort and energy savings. Carpet and furniture are also better protected against UV rays and color fading. Milgard SunCoat is Low-E2 and SunCoatMAX is Low-E3 giving you better levels of protection.

SunCoat Low-E2 Glass

This microscopically thin coating is applied to one side of the glass to reflect heat from its source in the summer, keep heat inside in the winter and reduce harmful UV rays. SunCoat Low-E2 glass comes standard on all Milgard dual-pane windows and patio doors. Benefits include: 

  • Consistent temperatures for greater year-round comfort = Energy savings
  • Reduces harmful UV rays by up to 84 percent = Helping protect fabrics and carpet from the sun's damaging rays.

SunCoatMAX Low-E3 Glass

SunCoatMAX Low-E glass provides the best clarity and highest performance of all solar gain Low-E glass products. Benefits include: 

  • Increases center glass surface temperature in winter = Comfortable, consistently cozy rooms.
  • Reduces solar heat gain more than two-coat, Low-E glass = Keeps your house cooler in the summer.
  • Provides ultraviolet light blockage = Additional protection from UV-A and UV-B rays for your fabrics and other furnishings.