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ConceptFolding 77

Invite nature into your building

ConceptFolding 77 provides exceptional element sizes for maximal transparency and stunning aesthetics. Nature and indoors come closer together as the aluminium folding door system connects up to eight vents to draw the exterior inside.

Best in class element sizes

Product options

Personalise Functional Window with the following options

Low Threshold

Easy access, cleaner look.

Zero Threshold

Entrance without boundaries, even with continuous flooring.

Concealed Drainage

No more plastic cover caps, enjoy those clean lines.

Technical information

Personalise Functional Window with the following options

Performance

Energy

Thermal insulation - Uw Double
0.35 Btu/hr.ft².°F
Thermal insulation - Uw Triple
0.27 Btu/hr.ft².°F
Uw Dependencies
Ug 0.6W/m²K, warm edge spacer, @3.00x2.30m, 36mm glass

Comfort

Air tightness
0.1 cfm/ft³
Water tightness
8 psf
Air tightness
Class 4 (600Pa)
Water tightness
Class 9A (600Pa)
Wind load resistance
Class C3 (1200Pa)
PG rating
55
Opening & closing resistance
Class 3

Safety

Burglar resistance
PAS 24 - RC2
* Note: Performances and properties may be different depending on the profile combinations

Properties

Max. dimensions & weight

Min. height of vent
23 5/8 inch
Max. height of vent
118 1/8 inch
Min. width of vent
15 3/4 inch
Max. width of vent
47 1/4 inch
Max. weight of vent
264 lbs

Sightlines

Min. width meeting section
4 13/16 inch
Min. width T-profile
1 7/8 inch
Min. height treshold
3/16 inch
Depth frame
3 1/16 inch
Depth Vent
3 1/16 inch
Depth frame-vent
3 1/16 inch

Glazing

Rebate height
1 inch
Glazing method
Dry glazing - Siliconized glazing - Internal glazing - Glazing bead
Min. glass thickness - vent
1/4 inch
Max. glass thickness - vent
2 1/2 inch
Download our product materials

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