Optio 58BW ST HI Window
Why Choose Our AluK Windows 58BW ST HI?
With excellent air, water and wind resistance test results, this system can withstand the worst of British weather. The 58BW ST HI offers high thermal efficiency with U-values as low as 1.4 for double-glazed and 1.1 for triple-glazed, ensuring your property is warm and comfortable.
The 58BW ST HI windows accommodate up to 32mm glazing units for thermal and acoustic performance.
DESIGN & OPTIONS LOOK OF STEEL, BENEFITS OF ALUMINIUM
Designed to replace and complement existing steel windows, the range has been specifically developed for use on buildings where steel windows have traditionally been fitted. The slim sightlines allow for an easy match to existing windows, making it ideal for heritage, listed buildings and steel window replacements.
The system also includes hardware that is sympathetic to traditional steel window designs, perfect for planning permissions in conservation areas.
Design & Configuration Options
The range is available in a wide range of standard and RAL colours. Anodised finishes are also available, with marine grade guarantees on request. The 58BW ST HI profiles feature traditional square sections and sightlines of just 43mm in a fixed light. There are four different sash profiles to achieve design and planning permission requirements.
Available in a wide range of styles, including top-hung, side-hung, bottom-hung, fixed light and multi-light, the system cleverly replicates the narrow sight lines associated with steel windows whilst providing superior performance and security. This range is certified under the Secured By Design scheme and fully PAS 24 tested for complete peace of mind.
Exceptional Performance
Available in a wide range of styles including Top Hung, Side Hung, Bottom Hung, Fixed Light and Multi Light, the system cleverly replicates the narrow sight lines associated with steel windows whilst providing superior performance and security.
The system also includes hardware that is sympathetic to traditional steel window designs.
The 58BW ST HI offers high thermal efficiency with U-values as low as 1.4 for double glazed and 1.1 for triple glazed, ensuring your home is warm and comfortable.
With excellent air, water and wind resistance test results, this system can withstand the worst of British weather.
And with full PAS 24 and Secured By Design accreditation, you can feel safe and secure with this superior system.
Technical performances
| Standard technical data | HI technical data | |
| U value W/m²K | 1.2 W/m²K - 1.5 W/m²K | 1.1 W/m²K -1.4 W/m²K |
| Window energy rating | A-B | A-B |
| Air tightness (Pa) | Class 4 (600 Pa) | Class 4 (600 Pa) |
| Water tightness (Pa) | Class 9a (600 Pa) | Class E1500 (1500 Pa) |
| Wind load (Pa) | Class E2400 (2400 Pa) | Class E2400 (2400 Pa) |
At your
disposal
disposal