Structural glass for extensions, roofs and frameless glazing
Structural glass allows homes and buildings to be opened up with frameless glazing, hidden fixings and uninterrupted natural light. From glass box extensions and oriel windows to structural glass roofs, glass walls, up-and-over glazing and walk-on rooflights, Sieger Systems designs and installs structural glazing for projects where standard framed systems cannot achieve the same architectural result.
The Sieger structural glass system uses thermally broken profiles to support high-performance frameless glazing, helping architects, homeowners, developers and main contractors create cleaner glass-to-glass connections without losing sight of insulation, weather performance or buildability.
Sieger Systems supplies and installs structural glass across London, Buckinghamshire, Berkshire, Oxfordshire, Hertfordshire, Surrey, Bath, Bristol and Somerset.
Premium performance
Bespoke made to order
Designed & made in the UK
PRODUCT FEATURES
Structural glass features
Frameless glass design
Thermally broken profiles
Bespoke glass layouts
Tested system performance
To learn more about additional features:
Technical performance
| System type | Fully tested thermally broken structural glazing system |
| Thermal performance | Uw values of 1.1-1.2 W/m²K |
| Design approach | Frameless structural glass with hidden fixings |
| Testing | Tested for thermal performance and wind load resistance |
| Applications | Oriel windows, glass walls, glass roofs, extensions and walk-on glass |
| Installation feature | Removable side on base fixing for easier installation and replacement |
GLASS OPTIONS
- Large structural glass panels
- Frameless glass-to-glass joints
- Structural glass roof panels
- Walk-on structural glass
- Anti-slip surface options for glass floors
- Project-specific coated or laminated glass solutions
- Switchable tinted glass
- Heated glass
