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ConceptFolding 68 Functional

Technical information



Thermal insulation - Uf
1.7 W/m²K


Air tightness
Class 4 (600Pa)
Water tightness
Class 9A (600Pa)
Wind load resistance
Class B3 (1200Pa)
Acoustics - Rw(C;Ctr)
35 (-1;-4) dB - 40 (-2;-4) dB


Impact resistance
Opening & closing resistance
Class 3
* Note: Performances and properties may be different depending on the profile combinations


Max. dimensions & weight

Min. height of element
908 mm
Max. height of element
2618 mm
Min. height of vent
800 mm
Max. height of vent
2500 mm
Min. width of vent
400 mm
Max. width of vent
1200 mm
Max. weight of vent
120 kg


Min. width 4-pane
134 mm
Min. width meeting section
131 mm
Min. width T-profile
30 mm
Min. height treshold
15 mm
Depth frame
68 mm
Depth Vent
68 mm
Depth frame-vent
68 mm


Rebate height
14 mm
Glazing method
Dry glazing Siliconized glazing Internal glazing Glazing bead
Min. glass thickness - frame/element
12 mm
Max. glass thickness - frame/element
55 mm
Min. glass thickness - vent
12 mm
Max. glass thickness - vent
55 mm