ConceptSystem 77 Fireproof

Performance

Comfort

Air tightness

Class 4 (600Pa)

Water tightness

Class 9A (600Pa)

Wind load resistance

Class C5 (2000Pa)

Opening & closing resistance

Class 3

Safety

Fire resistance

EI₂ 30 - EW 30

Properties

Max. dimensions & weight

Min. height of vent

23 5/8 inch

Max. height of vent

85 1/16 inch

Min. width of vent

17 11/16 inch

Max. width of vent

47 1/4 inch

Max. surface of vent

2.16 m²

Sightlines

Min. width T-profile

3 inch

Depth frame

2 11/16 inch

Depth Vent

3 1/16 inch

Depth frame-vent

3 1/16 inch

Glazing

Rebate height

1 inch

Glazing method

Dry glazing - Internal glazing - Glazing bead

Min. glass thickness - frame/element

9/16 inch

Max. glass thickness - frame/element

1 15/16 inch

Min. glass thickness - vent

9/16 inch

Max. glass thickness - vent

2 1/16 inch