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ConceptFolding 77
Certified for the warm-temperate category, this system offers exceptional thermal insulation thanks to its special foams on the frame and sash.
ConceptFolding 77
If you’re looking for a high-end solution to your home renovation project and interior design, you should consider investing in sleek and high-end hardware such as Cortizo bifold doors for a seamless transition between your living and garden spaces.
Contemporary slim Cortizo aluminium bifold doors can easily transform your self-build, renovation or house extension. They are designed to cover large openings, and we offer a great range of configurations, focusing on practicality and easy access.
High technical performance
Next to the improved space utilization, this innovative system offers the advantage of loads of daylight coming in, as well as an aesthetical design. Another practical feature of CF 77 is the optional door locking principle which allows to use the first leaf as an entrance door without affecting the folding capacity of the system.
With CF 77, design and user friendliness go hand in hand with high technical performance. The standalone solution exists out of new profiles, accessories and insulation technologies that have specifically been designed for folding systems.
High insulation
It ensures high insulation values (Uf values down to 2,25 W/m2 K) that meet stringent local legislation requirements as well as market demands. Available in a number of configurations using between 2 and 8 door leaves, you can choose a design where the complete set of vents stacks to the same side, or split the design at any position, possibly integrating a central door solution.
Wide range of design
Next to the functional design, the CF 77 is supplemented with a Slim-Line variant, the CF 77-SL, featuring a narrower visible width. Both designs are available in four different door sill solutions: High Performance, Double Weather Seal, Low Threshold and Flat Bottom Solution. The High Performance option offers maximum performance in terms of air, wind and water resistance.
The Double Weather Seal solution combines good air, wind and water resistance with decreased threshold and is well suited for renovation projects. The Low Threshold option offers a rise of only 18 mm and finally the Flat Bottom solution allows easy passage and maximum convenience for high traffic.
Performance
Energy
- Thermal insulation - Uf
- 2.25 W/m²K
Comfort
- Air tightness
- Class 4 (600Pa)
- Water tightness
- Class 9A (600Pa)
- Wind load resistance
- Class B3 (1200Pa)
- Opening & closing resistance
- Class 3
Safety
- Burglar resistance
- RC2 WK2 PAS 24
Properties
Max. dimensions & weight
- Min. height of element
- 678 mm
- Max. height of element
- 3130 mm
- Min. height of vent
- 600 mm
- Max. height of vent
- 3000 mm
- Min. width of vent
- 400 mm
- Max. width of vent
- 1200 mm
- Max. weight of vent
- 264 lbs
Sightlines
- Min. width 4-pane
- 154 mm
- Min. width meeting section
- 144 mm
- Min. width T-profile
- 48 mm
- Min. height treshold
- 5 mm
- Depth frame
- 77 mm
- Depth Vent
- 77 mm
- Depth frame-vent
- 77 mm
Glazing
- Rebate height
- 25 mm
- Glazing method
- Dry glazing Siliconized glazing Internal glazing Glazing bead
- Min. glass thickness - frame/element
- 6 mm
- Max. glass thickness - frame/element
- 63 mm
- Min. glass thickness - vent
- 6 mm
- Max. glass thickness - vent
- 63 mm