T450N Window-Wall Bay — Tilt-Turn Fixed Corner Assembly
T450N Window-Wall Bay — Tilt-Turn Fixed Corner Assembly
T450N Window-Wall Bay — Tilt-Turn Fixed Corner Assembly
The T450N is Architectural Blomberg's flagship thermally-broken aluminum window-wall system, engineered for large-format corner glazing in high-rise residential towers and luxury commercial developments. Delivering an industry-leading 5/8" sightline on both interior and exterior faces, the T450N achieves the visual continuity demanded by contemporary curtain-wall architecture without compromising structural or thermal performance.
Fabricated from 6063-T5 extruded aluminum with precision-engineered polyamide thermal break struts, this corner assembly pairs a tilt-turn operable sash with a fixed corner mullion featuring structural silicone glazing on the exterior face — delivering seamless sightlines at the corner return while maintaining full weather resistance and seismic compliance.
Studio View — Complete Corner Assembly (Tilt Position)
The T450N corner assembly shown with the tilt-turn sash open at the tilt position, exposing the multi-point locking mechanism and the 5/8" sightline profile on both faces.
Installed Performance — 45th-Floor San Francisco Penthouse
Floor-to-ceiling T450N corner glazing flooding a luxury penthouse interior with panoramic bay views. The near-invisible sightlines dissolve the boundary between interior and exterior, delivering the unobstructed views that define trophy residential projects.
Thermal Break Detail — Mitered Corner Mullion Cross-Section
Cross-section of the mitered corner mullion revealing the polyamide thermal break strut that thermally isolates the interior and exterior aluminum faces — the engineering core of the T450N's NFRC-certified U-0.16 performance.
Specifications
| Parameter | Value |
|---|---|
| System | T450N Thermally-Broken Aluminum Window-Wall |
| Sightline (Interior / Exterior) | 5/8" (15.9 mm) both faces |
| Glazing Configuration | Triple-pane Low-E IGU with argon fill; structural silicone glazing (exterior face) |
| U-Factor (NFRC) | 0.16 BTU/hr·ft²·°F (NFRC 100 certified) |
| Design Pressure Rating | Per project engineering; AAMA 501 test protocol |
| Thermal Break Material | Polyamide (PA66-GF25) thermal break struts |
| Seismic Compliance | AAMA 501.4 / CBC Seismic Zone 4 compliant |
Extrusion Alloy: 6063-T5 aluminum | Operable Sash: Tilt-Turn (multi-point locking) | Corner Mullion: Fixed, mitered, structural silicone exterior | Finish Options: Anodized (Class I/II), AAMA 2605 PVDF powder coat — contact for custom RAL