CS 77 Hidden Vent

CS 77 Hidden Vent

Concept System 77 'Hidden Vent' aluminium window

Optimised safety and comfort

Concept System® 77 is a highly insulated aluminium window that is thermally well insulated, stable and secure. Anticipating stringent thermal requirements, the insulation value (Uf) for the standard opening window can reach 1.6 W/m²K. The unique concept of the window makes it perfectly suitable for the incorporation of triple glazing. CS 77 has even achieved the Swiss Minergie® component label, the sustainability brand for new and refurbished buildings. 

The window’s performance regarding acoustics, water and air tightness, but also for specific applications like bullet and fire resistance, meets the most stringent of European standards. Furthermore, CS 77 aluminium windows offer different levels of burglar resistance (class 2 and 3).

The window is available in a variety of styles: Functional, Renaissance and Hidden Vent. See the variants below.

The CS 77 window is available as an inward and outward opening window and is compatible with CS 77 doors, CP 130 sliding door and Ventalis ventilation units. The window is suitable for all types of buildings, even with the highest safety requirements.

Also available is CS 77 window for accessible homes. The window for accessible homes is a variant of the CS 77 window system, which has proved to be immensely popular over recent years and remains Reynaers’ best-selling window system in the UK. This highly insulated window offers excellent performance and great versatility.

Downloads

Brochures

Technical information

Properties

Min. Visible width frame: inward opening76 mm 
Min. Visible width frame-vent: inward opening76 mm 
Min. Visible width T-profile101 mm 
Max. height vent2400 mm 
Max. width vent800 mm 
Max. weight element120 kg 
Overall system depth frame68 mm 
Overall system depth vent72.5 mm 
Rebate height18.5 mm 
Min. Glass thickness4 mm 
Max. Glass thickness48 mm 
Min. Glass thickness vent21 mm 
Max. Glass thickness vent48 mm 

Performance

Comfort
Air tightness max. test pressure4 (600 Pa)
Water tightnessE750 (750 Pa)
Wind load resistanceC4 (1600 Pa)
Energy
Thermal insulation (Uf)2.2 W/m²K

Opening elements

  • Fixed windowFixed window
  • 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