All five are motorised vertical-lift glazing; they differ in where the panels gather, in the frame structure and in the level of hardware.
| Feature |
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|---|---|---|---|---|---|
| Movement | |||||
| Where the panels gather | At the bottom | At the bottom | At the top | At the bottom | At the bottom |
| Number of panels | 2 / 3 / 4 | — | — | — | 3 |
| Horizontal profile | Yes | Minimal profile | Yes | None (frameless) | Yes |
| Control | Remote control; Somfy or Albert Genau motor | Fully automatic, remote controlled | Remote control | Motorised and remote controlled | Motorised, remote controlled |
| Hardware | |||||
| Glass | Mono / Twin (double glazing) | High insulation | — | Frameless glass | Single glass |
| Safety | Stainless inox chain | Safe vertical movement | Double anti-fall brake | — | — |
| Cleaning | 100%, with panels that tilt inwards | Can be wiped clean | — | — | Standard |
| Motor warranty | Italian Albert Genau motor, 5 years | — | — | — | Standard motor |
| Certification | |||||
| Award / test | PfB test, 4 design awards | 4 international design awards | — | — | — |
| Where | Cafes, restaurants, homes; the best equipped | Without losing balcony space | Cafes and restaurants; an opening clear from the floor | Maximum light and view | When an economical vertical-lift system is needed |
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