heroal window system W 77
Use of the clamp-on heroal VS Z EM with heroal W 77
heroal WF EM with the W 77 window system

heroal W 77

The window system for today and tomorrow

Through the smart combination of selected materials and geometries, the heroal W 77 window system achieves Uw values up to passive house suitability with a design depth of only 77 mm. Sash profiles are available with push rod fitting grooves (SBN) and plastic fitting grooves (KBN), which makes a flexible fabrication possible. Windows with a high proportion of glass can be created thanks to the minimum face width of just 90 mm. The standard window system heroal W 77 with a face width of 120 mm achieves a Uf value of 1.1 W/m²K, and can be further enhanced or extended. Extensions are heroal W 77 HI (Highly Insulated - enhancement of the U value through the use of different sealings and insulations; Uf value of 0,95 W/m²K), heroal W 77 PH (Passive House - U-value at passive house level with a face width of 180 mm; Uf value of 0,78 W/m²K) and heroal W 77 UD (Universal Design - French doors with a threshold height < 20 mm).

  • High thermal insulation with low design depth
  • Proven performance features, combined with heroal WF and heroal WF EM fittings
  • Great variety of colours and designs


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  • Individual system and software training
  • First-class technical support
  • Individual marketing support, including website building
  • Personal support by responsible field sales team

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