Milgard windows are designed to meet ENERGY STAR® qualifications—and then some. 3D® and 3D MAX® energy package upgrades address energy efficiency through innovative technologies such as SunCoat®, SunCoatMAX® Low-E Glass, argon gas and EdgeGard™ and EdgeGardMAX™ spacers. Adding Milgard's Triple Glaze option to our Ultra™ and WoodClad™ Series of products helps you get the highest energy performance at a minimal cost increase. On our Tuscany® Series, triple glazing provides the best U-Value and Solar Heat Gain performance available from Milgard.
Where to find energy efficiency upgrades – Energy efficiency options are listed under the "More Options" tab of each and every door style product page.