Energy & efficiency
The quiet exchange happening at every opening
Air and heat move through gaps, failed seals and thin glazing. An insulated glass unit puts more material — and more trapped, still air — between inside and out. The visual below is explanatory, not a measurement of your home.
Aging window
Leaking- Air leaks at worn weatherstripping
- Heat moves quickly through single glazing
- Failed seals let moisture between panes
- Gaps open as frames settle and warp
Modern insulated unit
Sealed- Compression seals close the frame line
- Multi-pane glazing with an insulating gap
- Warm-edge spacer holds the panes apart
- Low-E coatings manage radiant heat
Actual performance depends on product selection, climate zone, installation quality and the condition of your existing openings. Ask your professional for the specific ratings on any product they recommend.