Insulated Glass Units

An IGU is two or more panes of glass separated by a spacer and sealed into a single unit, with the cavity filled with air or argon gas. The sealed airspace dramatically reduces heat transfer, which is what makes modern windows energy efficient.

Double glazing uses two panes with one sealed cavity, triple uses three panes with two cavities, and quad uses four panes with three cavities. Each added cavity improves thermal and acoustic performance. We manufacture all three configurations to spec.

Low-emissivity coatings are microscopically thin metallic layers that reflect heat while letting light through. In winter they keep interior heat in, and in summer they reflect solar heat away, improving the unit's overall energy performance.

Argon is denser than air, so filling the sealed cavity with argon slows heat transfer through the unit. It is an inexpensive upgrade that meaningfully improves the insulating value of any IGU.

The spacer is the component that separates the panes at the edge of the unit. Warm-edge spacers, like the Super Spacer and EnerEDGE foam systems we use, conduct far less heat than traditional metal spacers, reducing edge condensation and improving overall performance.

We manufacture units up to 11.5 ft x 8.2 ft (3.5 m x 2.5 m), with a production capacity of 8,000 sq ft per day and an average lead time of 5 to 7 business days.

Yes. Wholesale supply to window and door manufacturers is the core of our business. We offer account setup for simple reordering, consistent quality unit after unit, and lead times you can schedule production around. See our Wholesale Partners page for details.