29 July, 2021

Thin Triple Pane Windows

A new version of highly insulating triple pane windows is emerging in the market. Thin triple pane (TTP) windows have roughly the same insulation value (˜R-5) of conventional triple pane windows, but without the added frame thickness and weight. Because they use the same glazing unit dimensions as a double pane window they are a 40% more energy efficient drop-in substitute to typical double pane low-E (˜R-3.3) windows without any changes to how the window is framed or internal trim details. They make for an excellent code trade-off or upgrade option for addressing envelope heat loss targets.

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