Casement window

WICLINE 75 TOP is a highly thermally insulating window system with optimal performance, reliable fabrication and performance figures at passive house levels – combined with the familiar slimline appearance of a 75 mm window system. This window system features a slim module depth of 75mm which is combined with Uw values below 0.80 W/(m2K).


Sleek attractive design or first-class energy efficiency? With WICLINE 75 TOP, you no longer have to choose as WICONA have combined both aspects into a single outstanding aluminium window system. This allows facade designs that meet demanding energy and architectural performance requirements. WICLINE 75 TOP is a high thermal insulation aluminium window system with optimum performances, dependable workmanship and performances to passive house standards - all combined with the sleek look that is associated with a 75mm window.


System tests / CE-marked product passport according to EN 14351-1:2006+A2:2016

Air permeability
Water tightness
Resistance to wind load
Acoustic Performance
Operating forces
Mechanical strength
Continuous operation
Corrosion resistance of fittings
Burglar resistance
Bullet resistance
Quality assurance
Class 4
Class C5/B5
Rw (C;Ctr) = 47 (-1;-4) dB
Class 1
Class 4
Class 3 (20 000 cycles)
Class 5
RC1N, RC2N, RC2, RC3
FB4 S, FB4 NS (depending on profile combinations)
Certified to DIN EN ISO 9001:2008

Technical performance

Profile technology

  • Highly thermally insulated multi-chamber system with ETC Intelligence® thermal break zone, which implements window designs with only 75 mm frame depth to passive house standards.
  • Patented corner and butt joint technology for high rigidity of components
  • Infill thickness up to 65 mm

Thermal insulation

  • Uf values 0.79 to 1.3 W/(m²K) for fixed glazed units with external sight lines from 48 to 155 mm
  • Uf values 1.0 to 1.2 W/(m²K) for sash-frame combinations with external sight lines from 74 to 142 mm
  • Uw values less than 0.80 W/(m²K)

Gasket concept

  • Central gasket in three variants:
    • Circumferential installation without corner pieces
    • With formed corners, no adhesive required
    • Corner vulcanised frames


  • Concealed hardware
    • Visible hinges, coated or anodised in all colours
    • Concealed hinges with integrated end position damping, opening angle max. 105°
  • Sash weights:
    • Concealed hinges: up to 160 kg
    • Visible hinges: up to 200 kg
    • On request: up to 300 kg
  • Sash sizes (w x h): up to 1700 mm x 2500 mm, Skylights up to 2500 mm x 1700 mm
  • Optional opening limiter

Additional designs

  • Concealed sash, infill thicknesses up to 50 mm
  • Integration frame for mullion/transom curtain walling
  • Skylight with manual lever, crank handle or motor

System combinations

  • WICLINE 75 TOP windows can be combined with WICLINE 75 evo windows, WICSTYLE 75 evo doors and using integration sash-frames, with current WICTEC curtain walling