ConceptSystem 77

ConceptSystem 77 is a trusted window solution that has been fully optimised to match all your project needs. This versatile aluminium system offers a complete range of variants and options, at a very competitive price-performance ratio.

Min. height of vent
600 mm
Max. height of vent
2800 mm
Min. width of vent
450 mm
Max. width of vent
1200 mm
Max. weight of vent
170 kg
Min. frame width (inward opening)
51 mm
Min. vent width (inward opening)
33 mm
Min. frame-vent width (inward opening)
89 mm
Min. frame width (outward opening)
17.5 mm
Min. vent width (outward opening)
76 mm
Min. frame-vent width (outward opening)
93.5 mm
Min. width transom profile
76 mm
Depth frame
68 mm
Depth Vent
77 mm
Depth frame-vent
77 mm
Thermal insulation (Best) – Uf
1.8 W/m²K
Thermal insulation – Uw
1.3 W/m²K
Uw Dependencies
Frame-vent: Ug 1.0W/m²K, warm edge spacer, @1.23×1.48m (102mm sight line), 36mm glass
Air tightness
Class 4 (600Pa)
Water tightness
Class E900 (900Pa)
Wind load resistance
Class C5 (2000Pa)
Acoustics – Rw(C;Ctr)
42(-2; -4) dB
Durability
Class 3 (20000 cycles)
Rebate height
25 mm
Min. glass thickness – frame/element
4 mm
Max. glass thickness – frame/element
52 mm
Min. glass thickness – vent
4 mm
Max. glass thickness – vent
63 mm

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