CF 77

CF 77

Concept Folding 77

Invite nature into your building

Concept Folding® 77 combines high insulation and comfort with maximal transparency and aesthetics. This folding door system optimizes your way of living by drawing the exterior into your home, with a minimum of space usage. This high-performance folding system door offers different opening types, both inward and outward, to meet all possible requirements. Apart from the standard folding elements, CF 77 can feature a main door principle, in which the first leaf is used as an entrance door without affecting the other folding leaves.

CF 77 is available in 4 different threshold solutions, from high performance to low and even flush thresholds in order to perfectly match all comfort and aesthetic requirements. Additionally, the CF 77-concept can perfectly be combined with the CS systems for windows, doors, and curtain walls.

Furthermore, CF 77 is available in Functional and Slim-Line style. This CF 77-SL variant features a slimmer visible profile width.

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Technical information

Properties

Max. height vent118 1/8 in. 
Max. width vent47 1/4 in. 
Overall system depth frame3 1/16 in. 
Overall system depth vent3 1/16 in. 
Rebate height1 in. 
Min. Glass thickness1/4 in. 
Max. Glass thickness2 1/2 in. 
Thermal breakFibreglass Reinforced Polyamide Strips  

Performance

Comfort
Air tightness max. test pressure0.1 cfm/ft²
Water tightness8 psf
Design pressure55
PG Rating55
Safety
Burglar resistance (EN)RC2/WK2
Energy
Thermal insulation Uw - Double0.27 Btu/hr∙ft²∙°F
Thermal insulation Uw - Triple0.35 Btu/hr∙ft²∙°F

Opening elements

  • Folding type 2-0-2Folding type 2-0-2
  • Folding type 3-0-3Folding type 3-0-3
  • Folding type 3-1-2Folding type 3-1-2
  • Folding type 4-0-4Folding type 4-0-4
  • Folding type 4-1-3Folding type 4-1-3
  • Folding type 4-2-2Folding type 4-2-2
  • Folding type 5-0-5Folding type 5-0-5
  • Folding type 5-1-4Folding type 5-1-4
  • Folding type 5-2-3Folding type 5-2-3
  • Folding type 6-0-6Folding type 6-0-6
  • Folding type 6-1-5Folding type 6-1-5
  • Folding type 6-2-4Folding type 6-2-4
  • Folding type 6-3-3Folding type 6-3-3
  • Folding type 7-0-7Folding type 7-0-7
  • Folding type 7-1-6Folding type 7-1-6
  • Folding type 7-2-5Folding type 7-2-5
  • Folding type 7-3-4Folding type 7-3-4
  • Folding type 8-0-8Folding type 8-0-8
  • Folding type 8-1-7Folding type 8-1-7
  • Folding type 8-2-6Folding type 8-2-6
  • Folding type 8-3-5Folding type 8-3-5
  • Folding type 8-4-4Folding type 8-4-4

Variants