Schüco AWS 75 PD.SI (Panorama Design) responds directly to modern architecture's call for "more glass, less frame." The engineers shrank the visible profile width to record-breaking dimensions without giving up any of the thermal properties of the SI series.
From outside, the sash all but disappears (the concealed sash effect), while indoors the profile sits flush with the frame in a single plane (the flush look). It is the ideal solution for ribbon glazing and for blending into curtain wall facades where visual lightness matters.
Brand
Schüco is the choice of architects who don't compromise. The German corporation is famous for aluminum facade systems that adorn skyscrapers worldwide. For private clients, Schüco offers the same technologies in premium window and sliding system formats.
More about SchücoTechnical Specifications
Panoramic styling. An architectural system whose visible profile narrows to just 55 mm to let in the most light.
Core system specifications:
Glass and infill choices:
Tested performance values:
Panoramic styling. An architectural system whose visible profile narrows to just 55 mm to let in the most light.
For a standard 2-sash tilt-and-turn window (1200 × 1400 mm) with basic double-glazed unit.
Alternative solutions from other manufacturers
Side by side
How Schüco AWS 75 PD.SI stacks up against the closest matches from other brands.
| Specification | Schüco AWS 75 PD.SIThis profile | Cortizo COR 70 Industrial | Kömmerling Xtrem 76 AD | WDS 76 MD (76 mm) |
|---|---|---|---|---|
| Brand | Schüco | Cortizo | Kömmerling | WDS |
| Material | Aluminium | Aluminium | PVC | PVC |
| Profile depth | 75mm | 70 mm | 76 mm | 76mm |
| Chambers | — | — | — | 6 chambers |
| Glass unit, max | up to 50mm | up to 55 mm | up to 50 mm | up to 48mm |
| Thermal (Uw) | 0.9 | ≤ 1.0 | ≤ 0.9 | 0.92 |
| Sound (Rw, dB) | ≈46 Rw(dB) | ≈ 44 Rw(dB) | ≈ 44 Rw(dB) | ≈45 Rw(dB) |
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FAQs
The system builds on a 75 mm profile depth with a thermal break plus foam insert. Tested values reach a frame Uf from 1.7 W/m²K and a whole-window Uw up to 0.9 W/m²K with triple glazing, placing it in Schüco's SI (Super Insulation) class. The refined gasket arrangement delivers air permeability Class 4 and watertightness Class 9A, with acoustic performance up to 46 dB (Rw).
Infill depth runs from 26 to 50 mm, covering double and triple units. The system is built for structural glazing, where the glass unit is bonded into the sash. This bonding adds rigidity, which is what lets a sash stay stable within the slim PD profile and supports large-format formats that a non-bonded slim frame could not carry.
PD stands for Panorama Design — Schüco's slim-face line. The visible face of frame plus sash narrows to just 55 mm, and the vent leaf is concealed, hidden from the outside and sitting on the same plane as the glass. Drainage is routed internally so the facade stays uninterrupted, maximising daylight and giving the unit a flush, minimalist appearance.
Both share a 75 mm depth and a Uw up to 0.9 W/m²K, but they differ in face and glazing:
Choose the PD.SI for maximum daylight and slim sightlines; the 75.SI+ for thicker glass and standard installation.
The slim 55 mm PD line caps infill at 50 mm and requires bonded structural glazing, so it is not ideal where you need thicker units or the very best insulation. For glass up to 68 mm and a Uw down to 0.80 W/m²K (A+++), the AWS 90.SI+ suits better, while the AWS 65 (Uw ≤ 1.4 W/m²K) is the budget-led option where panoramic styling isn't the priority.
Despite its slim footprint, the system is rated for burglar resistance up to RC2 class. It runs on purpose-built PD hardware that lets handles work without escutcheons (design handles), and concealed fittings keep the security mechanism out of view without compromising the panoramic, flush-glazed face.
