A thermally insulated hinged aluminium system combining reliable performance, versatile design and efficient construction for residential and commercial projects.
The ELVIAL W59 SI² is a 59mm thermally insulated opening system designed to provide dependable thermal, acoustic and weather performance across a wide range of architectural applications.
W59 SI² CE
Version designed for European groove mechanisms, combining flexible fabrication, reliable operation and strong thermal and weather performance.
W59 SI² ML
Version designed for Multilock groove mechanisms, providing additional flexibility in hardware selection while maintaining the same clean architectural character.
| System depth | 59mm |
| Glass thickness | Up to 46mm |
| Maximum sash height | Up to 2300mm |
| Maximum sash width | Up to 1000mm |
| Maximum sash weight | Up to 130kg |
| Thermal insulation (Uf) | From ≥ 1.8 W/m²K* |
| Air permeability | Class 4 |
| Watertightness | E1650 |
| Wind resistance | C5 / B5 |
| Sound reduction | Up to 40dB* |
*Performance values depend on window dimensions, configuration, glazing, hardware and selected energy level.
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Send us your drawings and project requirements and our technical team will recommend the appropriate system configuration and glazing solution.
