V-Glass VIG

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"Windows as warm as a wall."

– Pete Petit, Founder

The typical home loses 30% of its heat through windows, so highly insulating windows are an energy efficiency option with a disproportionately large benefit. Energy losses related to windows alone account for as much as 25% of total U.S. natural gas usage.

Average to highly insulated walls deliver R-12 to R-31 insulation value, 3 to 8 times less heat loss than triple glazed windows. Why can't windows be at least as warm as an average wall?

A new Energy Star standard (v7.0) implemented in October 2023 raised the window insulation hurdle from R-3.7 to R-4.5 in the U.S. Northern Climate Zone. Current dual pane configurations can't meet this new standard. Triple glazed windows can, but they are 50% thicker, 50% heavier, cost 50% more, and are more expensive to install.

Insulating glass manufacturers and window OEMs are looking for new technologies that will allow them to affordably meet today's increasingly stringent energy efficiency standards, to differentiate their products in the marketplace, and to expand profit margins.

V-Glass is working to deliver that solution. The company mission is to develop an affordable Vacuum Insulated Glazing (VIG) for windows. A VIG is like a flat, transparent thermos bottle for windows that dramatically reduces heat loss. Two panes of glass, separated by tiny spacers, are sealed around the edges. The vacuum between the two panes virtually eliminates conduction and convection heat loss. A Low E coating on one pane cuts radiation heat loss.

Unlike argon, vacuum will not conduct heat, no matter how thin the gap. As a result, V-Glass glazing can be as thin as ¼ inch thick plate glass.

Affordable vacuum insulated glass is a disruptive product having national strategic importance. Successful development of V-Glass and associated manufacturing technology will generate significant benefits, including the following:

Enable zero energy buildings.
Provide U.S. participation in a large market with global impact on energy efficiency.
Extend the life of natural gas reserves and reduce greenhouse gas emissions.
Expand the frontier of scientific knowledge in advanced technology disciplines.
Increase demand for university and technical college courses in vacuum science, material bonding, plasma treatment, metallurgy, automation, and operation of related equipment.
Create a regional talent pool of higher value skills on the job market.
Serve as a platform for other important products requiring sealed flat panels, such as digital displays and neutron detectors for Homeland Security.