Schüco AWS 75.SI+ (Super Insulation) represents the next level in aluminum window technology. The SI+ designation indicates the use of special foam inserts inside the polyamide thermal bridges, significantly reducing heat loss through the frame.
This system combines the elegance and durability of aluminum with thermal performance approaching that of PVC profiles. It's the perfect choice for energy-efficient homes where aesthetics cannot be compromised.
Technical Specifications
Super insulation aluminum. Premium 75 mm system with foam-filled thermal bridges for maximum energy efficiency.
System structural parameters:
Glazing options:
Certified characteristics:
Documentation
Super insulation aluminum. Premium 75 mm system with foam-filled thermal bridges for maximum energy efficiency.
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.SI+ stacks up against the closest matches from other brands.
| Specification | Schüco AWS 75.SI+This 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 61mm | up to 55 mm | up to 50 mm | up to 48mm |
| Thermal (Uw) | 0.9 | ≤ 1.0 | ≤ 0.9 | 0.92 |
| Sound (Rw, dB) | ≈48 Rw(dB) | ≈ 44 Rw(dB) | ≈ 44 Rw(dB) | ≈45 Rw(dB) |
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FAQs
Yes, the profile Uf reaches 0.92 W/m²K. Combined with a warm glass unit (window Uw ≈ 0.9-1.0), this system meets modern energy-saving standards for residential cottages in temperate climates.
The SI+ version has additional foam insulating inserts and an improved gasket. The aluminum geometry is the same, but the thermal performance of the SI+ version is significantly higher.
Sashes can be made up to 2500 mm high and 1700 mm wide (depending on glass weight). Maximum sash weight is up to 250 kg (with reinforced hardware), allowing panoramic opening walls.
Tilt-and-turn, turn-only, tilt-only (top-hung), French doors (without central mullion), as well as PASK portal doors (parallel-sliding).
Yes, this is a standard option for "warm" aluminum. You can order different profile colors for outside (matching the facade) and inside (matching the interior).
Aluminum requires virtually no maintenance. Simply wash the profile with soapy water twice a year and lubricate the hardware with oil. Powder coating doesn't need renewal for the entire service life (50+ years).
