Packard Foundadtion Headquarters in Los Altos, CA - "Largest Net Zero Building in California" - Photographer: Jeremy Bitterman

The window of the future is here.

It’s the vision of efficiency

Upgrading existing windows with Heat Mirror® insulating glass

Depending on the number of films and the type of inert gases added within, insulating glass made with Heat Mirror technology can have an R-value from 6 to 20, which can insulate as well as typical walls. With such performance, windows made with Heat Mirror technology can substantially lower your energy bills.

Expect peace and quiet—and peace of mind.

It makes sense that the most sound window system also blocks the most sound. Heat Mirror technology blocks outside noise—up to 5 decibels better than double-paned windows—creating a comfortable refuge in your favorite places.

Protect your furniture—save your skin.

Heat Mirror® window systems can block over 99.5% of harmful ultraviolet (UV) radiation—a known carcinogen. Let the sun shine through without worrying about it prematurely fading your drapes, furniture, floors, photographs, artwork, and anything else you like to show off indoors . . . including your skin.

Enjoy your entire home—the entire year.

Upgrading existing windows with Heat Mirror® insulating glass is like adding new rooms to your home, because you’ll now be able to enjoy them year round.

Improve your views—and your outlook.

With maximum UV protection and incredible energy efficiency, Heat Mirror® insulating glass provides more architectural and interior design freedom for architects, builders, and homeowners alike.