Design & Sustainability

The window for maximum demands


The new concealed sash of the WICLINE 75 MAX makes the difference between an opening field and a fixed field disappear from the outside. Concealed hinges and fittings, as well as the new concealed handle, ensure clear, uninterrupted lines, also from the inside. “MAX” stands for top innovation and the triple performance spectrum of a harmonious appearance, greater light and comfort, and a system containing a high recycled content. The window handle is hidden in the sash, adding to the harmonious appearance of the window. This innovative design idea was awarded prizes from the international expert juries of the iF DESIGN AWARD 2018, the Red Dot Design Award 2018 and the GERMAN DESIGN AWARD 2019.


Air permeability
Water tightness
Resistance to wind load
Acoustic Performance
Operating forces
Mechanical strength
Repeated opening / closing
Impact resistance
Class 4
Class C5 / B5
Rw up to 48 dB
Class 1
Class 4
Class 2 (10 000 cycles)
Class 2

Technical Performance

Profile technology

  • Frame depth: 75 mm
  • Frame rebate height: 44 mm
  • Overall construction depth of profile system: 95 mm
  • Max. sash width: up to 1400 mm
  • Max. sash height: up to 2250 mm
  • Infill thickness up to 50 mm

Profile sightlines

  • Frame profiles: 74 mm
  • Transom profiles: 79 mm
  • Sash profiles, concealed: 57 mm (internal sightline)

Thermal insulation

  • Uw value up to 0.81 W/(m²K)
    for a standard window size of 1230 mm x 1480 mm, Ug = 0.5 W/(m²K)

Types of opening

  • Side-hung window
  • Turn-tilt window
  • Bottom-hung window
  • Tilt-first window



Are you looking for professional advice? Do you have a suggestion that you would like to share with us? Get in contact with an expert by clicking on the link below.

Contact us