The Glass Comes First

Two layers of glass are less efficient and can cause problems with condensation.

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.

Panes of glass are fed into a cleaning machine.

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.

The edges of each insulated glass unit or IGU are sealed.

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