CS 86-HI

CS 86-HI

Concept System 86 'High Insulating' window

Highly energy efficient

Concept System® 86-HI is a highly insulated system for inward opening windows, which meets the highest requirements concerning safety and stability. The system’s unique insulation concept not only ensures the extreme stability and elevated water- and air tightness, but also makes it perfectly suitable for triple glass applications.
The overall insulation value (Uf) of the system's HI+ variant goes down to 1.0 W/m²K, making it one of the most energy-efficient systems available. CS 86 even achieved the Swiss Minergie® and Minergie-P® component label. With regard to safety, CS 86-HI can comply with burglar resistance classes 2 and 3, offering an ultimate level of security.

Ultimate combination possibilities, also with CS 86 doors, CP 155 sliding system and CF 77 Folding doors, makes CS 86 extremely suitable for all types of building concepts.

Technical information


Min. Visible width frame: inward opening51 mm 
Min. Visible width vent: inward opening35 mm 
Min. Visible width frame-vent: inward opening91 mm 
Min. Visible width frame: outward opening21 mm 
Min. Visible width vent: outward opening107 mm 
Min. Visible width frame-vent: outward opening107 mm 
Min. Visible width T-profile76 mm 
Max. height vent2400 mm 
Max. width vent1700 mm 
Max. weight vent (element)170 kg 
Overall system depth frame77 mm 
Overall system depth vent86 mm 
Rebate height25 mm 
Min. Glass thickness10 mm 
Max. Glass thickness72 mm 
Min. Glass thickness vent6 mm 
Max. Glass thickness vent72 mm 


Air tightness max. test pressure4 (600 Pa)
Water tightness9A (600 Pa)
Wind load resistanceC4 (1600 Pa)
Acoustic performance44 (0;-2) dB
Burglar resistanceRC 2/WK 2
RC 3/WK 3
Thermal insulation (Uf)1,0 W/m²K

Opening elements

  • FixedFixed
  • Inward opening combined elementsInward opening combined elements
  • Inward opening double casementInward opening double casement
  • Inward opening tiltInward opening tilt
  • Inward opening tilt turnInward opening tilt turn
  • Inward opening turnInward opening turn
  • Inward opening turn tiltInward opening turn tilt
  • Round window fixedRound window fixed
  • Round window horizontal openingRound window horizontal opening
  • Round window vertical openingRound window vertical opening
  • Outward opening Top hungOutward opening Top hung
  • Outward opening top hung with friction staysOutward opening top hung with friction stays
  • Outward opening TurnOutward opening Turn
  • Outward opening Turn with friction staysOutward opening Turn with friction stays
  • Outward opening combined elementsOutward opening combined elements
  • Thermo front double casementThermo front double casement
  • Thermo frontThermo front