Aluminium-Clad
uPVC Windows / Doors

For those seeking an even more premium solution, our aluminium-clad uPVC windows / doors offer the best of both worlds: the thermal efficiency of uPVC and the architectural elegance and robustness of aluminium on the exterior.

Lightweight
Performance

Aluminium offers a unique strength-to-weight ratio. This allows for stable, durable window constructions that remain lightweight – making installation easier while enabling large glazed elements without structural compromise.

Modern
Asthetics

Aluminium’s strength allows for narrow frames and wide glass areas, creating a clean, minimalist aesthetic that’s ideal for modern South African architecture.

Customisable
Colour & Ranges

Our aluminium windows are available in the full RAL colour palette, including metallic, matte, textured, and pearl-effect finishes. This allows maximum flexibility in façade  design, from subtle tones to bold architectural highlights.

Flexible
Designs

Thanks to the malleability of aluminium, a wide variety of custom shapes and sizes is possible – including arched, angled or oversized windows. Ideal for unique designs or modern renovations.

Durable &
Long-Lasting

Aluminium is corrosion-resistant, weatherproof and unaffected by UV radiation, humidity or salt air – making it ideal for coastal areas like Durban, Cape Town or Port  Elizabeth. Even under heavy exposure, aluminium remains dimensionally stable and functional for decades.

Low Maintenance
& Easy to Clean

The powder-coated surface of aluminium frames is scratch-resistant, fade-proof and dirt-repellent. No repainting is required, and routine cleaning is minimal – even in high-traffic or commercial environments.
Wood-Aluminium Windows

Typical Applications

  • Modern residential homes and luxury developments
  • Commercial buildings, offices, retail spaces
  • High-traffic areas and public buildings
  • Properties in coastal or harsh weather regions
  • Architect-designed homes with large glass façades
  • Sustainable and low-maintenance construction projects
AKF 734 S

Technical Information


Materials
Materials - Exterior

Exterior:
Aluminium cladding
Semi-recessed
Powder-coated

Materials - Interior

Interior:
PVC

Materials - Sealing

Sealing:
Central seal

Materials - Hardware System

Hardware system:
Tilt-and-turn
Visible hinge side

Performance
Performance - Insulation

Thermal insulation:
Standard: 1.2 W/m²K
Optional: up to 0.75
W/m²K

Performance - Sound

Sound insulation:
Up to 47 dB

Performance - Airtightness

Airtightness:
Class 4

Performance - Watertightness

Watertightness:
Up to class 9A

Dimensions
Dimensions - Frame Depth

Frame depth:
88.5 mm

Dimensions - Visible Depth

Visible width:
120 mm

Dimensions - Max Glass Thickness

Maximum glass thickness:
Standard: 24 mm
Optional: up to 51 mm

Dimensions - Shapes

Shapes:
Windows with arches and angled edges possible


Security & Colours
Colours

Colours:

Exterior: according to KNEER-SÜDFENSTER colour chart, NCS, glossy RAL, or RAL Design

Interior: white, foiled (according to KNEER-SÜDFENSTER colour chart), woodgrain foil or solid colours

Burglary Protection

Burglary protection:

Standard: with 2 mushroom-head locking pins & security striker plates
Optional: RC3 resistance

Materials - Aluminium-uPVC
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