Three layers of glass with low-E coating and filled with argon create an insulating sandwich of glass.
Huge sheets of glass are set down flat and fed into a CNC machine where they are cut to order for a specific project.
Aluminum spacer frames that separate the panes of glass are pre-cut, assembled, and then the corners are welded.
The glass panes and spacer frames are aligned and sent into a chamber. Air is evacuated and replaced with argon. The assembly is then pressed together leaving argon between the sheets of glass.