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Vacuum Insulated Glazing for Historic Restoration

Vacuum Insulated Glazing for Historic Restoration

Pilkington Spacia™ is the world's first commercially available vacuum glazing, offering the thermal performance of conventional double glazing in the same thickness as a single glass pane. Because of the thin profile, it is often a good fit for historic restoration projects as it bal¬ances historical preservation with modern comfort and environmental requirements with the ability to achieve a U-factor of <0.25.

A vacuum provides excellent thermal efficiency and if the pressure is low enough, it will eliminate the conductive and convective heat exchange between the two panes of glass. In a standard double glazed unit with a low-e coating, the conduction/convection component can be up to 70% of the heat loss and so the energy savings is significant. The vacuum space provided between the two panes with Pilkington Spacia™ significantly reduces thermal conduction and convection, and a low-e coating reduces thermal radiation.

This product is made to custom sizes and has been used in Japan and Europe for almost 20 years but is now being brought into North America enabling opportunities for historic restoration projects that were previously not possible.

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