The Advantage of Cascade Windows Glass Coatings

EC = Dual Coat internal Low-E, high performance internal Low-E with more visual light transmittance.

EC+ = Triple Coat internal Low-E, has been specially formulated to reject the sun's heat without affecting the view. It lets in more light and helps keep the heat out.

EC/EC Advanced = Dual Low-E, high performance internal Low-E combined with 4th surface Low-E.

EC+/ EC Advanced = Dual Low-E, Triple Coat internal Low-E with 4th surface Low-E, the best overall combination for low solar heat gain and the maximum reduction in u-value.