Bottom Fixed + Top Hung

Combination window with a lower fixed vision glass and top-hung ventilation sash.

Popular in high-rise apartments and offices providing safety at lower level while allowing fresh air above.

Configuration	Fixed Bottom Pane + Top-Hung Transom Shutter
Max Sash Height	1,500 mm (Top-Hung) / 2,400 mm (Overall)
Max Sash Width	900 mm (Sigma) / 1,200 mm (Signature)
SGU Glass	5 – 12 mm
DGU Glass	20 – 24 mm (Sigma) / 20 – 34 mm (Signature)
Laminated Glass	11.52 – 17.52 mm (Sigma) / 11.52 – 33.52 mm (Signature)
Locking Type	Single / Multi point
Corner Joinery	45°