Lift & slide doors are the new method of operation driven by the need for larger panels and increased thermal performance.
The doors sit down directly on the track and the handle has to be wheeled round 180° to ‘lift’ the door up on to its rollers.
This means that the door is positioned perfectly at all times. It is either fully closed for the best seal or fully lifted on heavy duty running gear allowing for a sliding movement of the door.
Due to this operation you can effectively lock the door in an open position meaning that they cannot be moved accidentally and allowing for an amount of secure ventilation (with internal handles only).