Glazing Options

Standard glass is insulating LoĒ2-272® with argon. Variables influencing thermal performance include window size and operating style, the number of panes - single, double or triple, the amount of air space between panes, glass thickness, the dimension and type of spacer bar, LoĒ coatings, grilles and lites, and the addition of argon or krypton. Window products can be specified for high energy efficiency.

Tripane glazing, available with argon or kryton gas, provides excellent energy performance. It's available with LoĒ2-272 on both panes, with LoĒ-179® on both panes for high SHGC, or with LoĒ3-366® on the exterior pane and LoĒ-179 on the interior pane for low SHGC.

Center of Glass U-factor
Clear / Clear 2 lites of 18" glass and 12" airspace, air 0.48
Clear / LoĒ-179 2 lites of 18” glass and 12” airspace, argon 0.28
LoĒ2-272 / Clear 2 lites of 18” glass and 12” airspace, argon 0.25
LoĒ3-366 / Clear 2 lites of 18” glass and 12” airspace, argon 0.24
LoĒ2-240® / Clear 2 lites of 18” glass and 12” airspace, argon 0.26
Triple Pane LoĒ-179 / Clear / LoĒ-179 3 lites of 18” glass and two 516” airspaces, argon0.19
Triple Pane LoĒ2-272 / Clear / LoĒ2-272 3 lites of 18” glass and two 516” airspaces, argon 0.17
Triple Pane LoĒ3-366 / Clear / LoĒ-179 3 lites of 18” glass and two 516” airspaces, argon 0.17


Tempered and laminated glazing options are available to meet special safety and impact requirements. Marvin offers a wide range of specialty and tinted glass, as well a spandrel and coastal glazing options.



Marvin Windows and Doors is part of The Marvin Companies, a family of windows and doors brands offering best-in-class solutions to meet the needs of the residential, replacement and commercial markets. Learn More.

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