CS 68

CS 68

Universal solution

Concept System® 68 is a universal window system with good performances regarding stability, thermal insulation and security, offered at a reasonable price and at a quick turn-around.

The system is available in a variety of different insertions and aesthetic styles: Functional, Renaissance and Hidden Vent — this way the windows can match your building style perfectly.

In spite of its simple design, the system still reaches requirements of most US states. A fixed window can (with Argon and the right type of triple glazing) reach a U-factor as low as 0.18. For a higher insulation system, see our CS 77 system or CS 86-HI.

The window system offers a range of solutions for inward and outward opening windows and is compatible with the Ventalis ventilation units. In addition, CS 68 windows offers a high level of security.



Between countries, there are differences in how a window is placed into the wall. For more information on the usage of Reynaers BIM models, download the BIM guidelines.

Technical information


Min. Visible width frame: inward opening51 mm 
Min. Visible width vent: inward opening33 mm 
Min. Visible width frame-vent: inward opening89 mm 
Min. Visible width frame: outward opening17,5 mm 
Min. Visible width vent: outward opening76 mm 
Min. Visible width frame-vent: outward opening93.5 mm 
Min. Visible width T-profile76 mm 
Max. height vent2400 mm 
Max. width vent1700 mm 
Max. weight element170 kg 
Overall system depth frame59 mm 
Overall system depth vent68 mm 
Rebate height25 mm 
Min. Glass thickness4 mm 
Max. Glass thickness54 mm 
Min. Glass thickness vent4 mm 
Max. Glass thickness vent54 mm 


Air tightness max. test pressure4 (600 Pa)
Water tightnessE750 (750 Pa)
Wind load resistanceC4 (1600 Pa)
Acoustic performance46(-2;-8) dB
Burglar resistanceRC 2/WK 2
RC 3/WK 3
Fire resistanceEW 30
Thermal insulation (Uf)1,8 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 turnInward opening turn
  • Inward opening turn tiltInward opening turn tilt
  • Outward opening combined elementsOutward opening combined elements
  • Outward opening double casementOutward opening double casement
  • 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
  • Pivot  horizontalPivot  horizontal
  • Round window fixedRound window fixed
  • Round window horizontal openingRound window horizontal opening
  • Round window vertical openingRound window vertical opening
  • Thermo frontThermo front
  • Thermo front double casementThermo front double casement
  • Multi patioMulti patio
  • Inward opening tilt turnInward opening tilt turn


Compatible handles