The overall performance of a window is dependent on the combined effect of frame and glazing components and the air-tightness of the finished window. Ratings maybe improved by decreasing thermal losses.
Decreasing thermal losses
- Type of Low-E glass: with its optimized balance of very low emissivity and high solar gain SGG PLANITHERM can improve the energy index for a given window
- Inert Gas filling: argon gas filling can improve the energy index for a given window compared to an air filled unit
- Optimized cavity width: the optimum cavity width for an argon filled unit is 15mm (10mm with Krypto)
- Warm edge spacer: Using SGG SWISSPACER can improve the energy index for a given window compared to standard aluminum spacer bars
- Triple glazing: can further reduce glazing U values
- Frame type: U values can be reduced with advanced materials and design
