Portal HST lift-and-slide system

The Portal HST is a lift-and-slide system (Hebe-Schiebe) in which the heavy sash rises slightly off the sill before it moves and then glides smoothly to the side.

This mechanism makes it possible to glaze large, floor-to-ceiling openings and to merge a room with a terrace or balcony. A low threshold and perimeter gaskets ensure easy passage and protection from draughts and moisture, while the hardware is rated for the substantial weight of glazed sashes.