Home Close-up diagram of double vs triple pane window cross-section showing gas fill, Low-E coating, and spacer bar Close-up diagram of double vs triple pane window cross-section showing gas fill, Low-E coating, and spacer bar

Close-up diagram of double vs triple pane window cross-section showing gas fill, Low-E coating, and spacer bar

Close-up diagram of double vs triple pane window cross-section showing gas fill, Low-E coating, and spacer bar
Modern home exterior with large triple-pane energy-efficient windows, showing frost-free glass in winter with warm interior lighting
Homeowner comparing Energy Star window label ratings in a showroom, with various window frame samples displayed behind