看R-Values

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R-Values of Double, Triple, and Quadruple pane windows

Regular double pane window R value (no LowE panes): 2

Regular triple pane windows R value (no LowE panes): 3.5

Regular quadruple pane windows R value (no LowE panes): 4

Double pane windows with 1 LowE, Argon fill R value: 3.2 – 3.5

Modern Double pane, Argon fill R value: 3.7 – 4

Triple pane with 1 LowE, Argon fill R value: 5 – 5.5

Triple pane with 2 LowE, Argon fill R value: 8 – 8.7

Triple pane with 2 LowE, Crypton fill R value: 8.5 – 9.7

Quadruple pane with 2 LowE, Crypton fill R value: 10 – 12

Quadruple pane with 3 LowE, Crypton fill R value: 10 – 12

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