The latest advance in energy-efficient window glass, Sungate® 460 passive low-e glass keeps your home toasty in the winter and heating bills under wraps, too. Clear and neutrally reflective, Sungate® 460 glass transmits solar energy into your residence then traps it with furnace heat to create warm, comfortable and energy-efficient living spaces.
Designed for northern climates, Sungate® 460 glass has an exceptional center-of-glass winter nighttime U-value of 0.26 in a standard, ¾-inch double-pane insulating glass unit (IGU), more than twice the insulating power of the same double-pane unit made with clear glass.
When supplemented with quality framing and insulating spacers and gases, the center-of-glass performance of Sungate® 460 glass can facilitate overall window U-values of 0.30 and minimum SHGCs of 0.42 in double-pane window units, which qualifies windows for certification under the ENERGY STAR 6.0 standard.
Sungate® 460 glass has high visible light transmittance of 75 percent, which enables it to flood interiors with light and to achieve a clear glass appearance that harmonizes well with building materials such as brick, stone, wood and metal siding.
To learn more about Sungate® 460 glass and how it can help residential windows meet ENERGY STAR® performance standards for your area, click here to find a window dealer near you.