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

The science of Heat Mirror

Heat Mirror® technology, which was invented by scientists at the Massachusetts Institute of Technology, suspends one or more lightweight films inside the airspace of an insulating glass unit to create multiple “super-insulating” chambers. The films utilize nanoscale coatings of metal to reflect heat back to its source. The technology can be combined with a wide range of glass types and gas fills that allow consumers and architects to choose the right level of insulation, visible light and solar control for their specific needs.

All this provides outstanding winter insulation and superior solar control that results in year-round energy savings and enhanced comfort you can feel. 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.

Heat Mirror® technology 

Insulating glass comparison table

To make sure you get the exact window performance for your project, Heat Mirror® advanced insulating glass provides a wide range of visible light, solar control, and thermal insulation to meet almost any performance requirement.

Heat Mirror® insulating glass comparison table