Cardinal glass i81 coating on double-pane vs. triple-pane
We are building a new house and had planned to use triple-pane glass in extruded fiberglass/composite frames. In particular we have one large picture window 96″W x 72″H. Just found out from window provider that they cannot (will not?) do this window as triple-pane due to size….particularly the weight of the glass. He suggested alternative of double-pane using new Cardinal i81 coating which he (and Cardinal website) claims achieves nearly the same thermal efficiency as triple-pane (thermal efficiency was major reason for using triple-panes). Does anyone have an opinion on this alternative?
Thanks in advance!
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