Hinges - balcony doors

Terrace doors Roto Patio Alversa can be designed as a parallel sliding system or tilt and sliding system. Depending on the option, micro-ventilation or tilt position for ventilation is possible. The combination of parallel sliding system and ventilation in tilt position is a unique solution of this type available on the market.

Maximal leaf width in the Roto Patio Alversa system is 2 meters, and maximal height is 2,7 meters.

Innovative mechanism of opening and closing parallel sliding systems enables quiet, noiseless movement.

Dedicated shock absorbing elements provide optimal closing and opening of the leaves. All parallel sliding variants can be operated intuitively like traditional turn and tilt  windows; sliding in the horizontal position of the handle

Parallel sliding system Roto Patio Alversa | PS Air Com is exceptionally comfortable in use: you can tilt the window by turning the handle, there's no need to push the window with your hand. This system allows for effortless opening and closing even large and heavy doors up to 200 kg.

Patio Alversa system provides the largest parallel action of sash on the market - 22 mm. This system can be used for thick profiles with heavy glass panes, that keep more heat inside the house.