Energy Efficiency Window Glass Options
Choosing the right glass is an important decision. No matter which area of the country you are in, Pella offers options just right for your climate.
Pella's InsulShield® glass collection offers our most innovative and energy-saving choices, designed for specific climate types.

Advanced Low-E Insulating Glass with Argon

Features:
- Two panes of glass with Advanced Low-E protection and insulating argon4 between the panes. Blocks 84% of the sun's ultraviolet rays.
- Three panes of glass also available on select product lines for increased energy efficiency. Blocks 86% of the sun's ultraviolet rays.
- Advanced Low-E double-pane glass available on for Pella windows and patio doors. Advanced Low-E triple-pane glass available on Pella Lifestyle Series, Architect Series windows and patio doors, and Pella 250 Series windows.
AdvancedComfort Low-E Insulating Glass with Argon

Features:
- Two panes of glass with AdvancedComfort Low-E protection and insulating argon4 between the panes. Blocks 85% of the sun’s ultraviolet rays.
- Three panes of glass also available on select product lines for increased energy efficiency. Blocks 87% of the sun’s ultraviolet rays.
AdvancedComfort Low-E double-pane glass available on Architect Series, Pella Lifestyle Series and Pella Impervia windows and patio doors. AdvancedComfort Low-E triple-pane glass available on Lifestyle Series, Architect Series windows and patio doors.
SunDefense™ Low-E Insulating Glass with Argon

Features:
- Two panes of glass with SunDefense Low-E protection and insulating argon between the panes. Blocks 94% of the sun’s ultraviolet rays.
- Three panes of glass also available on select product lines for increased energy efficiency. Blocks 95% of the sun’s ultraviolet rays.
SunDefense Low-E double-pane glass available on Architect Series, Pella Lifestyle Series, Pella Impervia windows and patio doors, and Pella 250 Series windows. SunDefense Low-E triple-pane glass available on Lifestyle Series, Architect Series windows and patio doors.
NaturalSun Low-E Insulating Glass with Argon

Features:
- Two panes of glass with NaturalSun Low-E protection and insulating argon between the panes. Blocks 69% of the sun’s ultraviolet rays.
- Three panes of glass also available on select product lines for increased energy efficiency. Blocks 73% of the sun’s ultraviolet rays.
NaturalSun Low-E double-pane glass available on Architect Series, Pella Lifestyle Series, Pella Impervia windows. NaturalSun Low-E triple-pane glass available on Lifestyle Series, Architect Series windows, and Pella 250 Serieswindows.