Altherm™ horizontal sliders come into their own when you need a window that doesn’t project on to walkways and patios. They are also ideal in servery situations for passing food from a kitchen to outside diners.

Two types of vertical sliding window are offered by Altherm™, the standard double hung with a traditional or contemporary style frame, and the Shugg window, which offers an all-glass look with no horizontal rails.

Please note: Thermal Heart™ is only available in horizontial sliding windows.

View sliding configurations