ConceptSystem 77 Hidden Vent

Performance

Energy

Thermal insulation - Uf

2.1 W/m²K

Thermal insulation - Uw

1.4 W/m²K

Uw Dependencies

Frame-vent: Ug 1.0W/m²K, warm edge spacer, @1.23x1.48m (104mm sight line), 36mm glass

Comfort

Air tightness

Class 4 (600Pa)

Water tightness

Class E750 (750Pa)

Wind load resistance

Class C4 (1600Pa)

Acoustics - Rw(C;Ctr)

46(-1;-4) dB

Opening & closing resistance

Class 3

Safety

Burglar resistance

RC2 - PAS 24

Operating Forces Class

Class 1

Properties

Max. dimensions & weight

Min. height of vent

550 mm

Max. height of vent

2400 mm

Min. width of vent

550 mm

Max. width of vent

1400 mm

Max. weight of vent

120 kg

Sightlines

Min. frame width (inward opening)

76 mm

Min. vent width (inward opening)

0 mm

Min. frame-vent width (inward opening)

76 mm

Min. vent-vent width (inward opening)

118 mm

Min. width T-profile

101 mm

Depth frame

68 mm

Depth Vent

72.5 mm

Depth frame-vent

77 mm

Glazing

Rebate height

18.5 mm

Glazing method

Dry glazing - Siliconized glazing - Internal glazing - External glazing - Glazing bead

Min. glass thickness - frame/element

4 mm

Max. glass thickness - frame/element

48 mm

Min. glass thickness - vent

21 mm

Max. glass thickness - vent

48 mm