ConceptFolding 77 Functional
Technical informationPerformance
Energy
- Thermal insulation - Uw Double
- 0.34 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 B3 (1200Pa)
- PG rating
- 55
- Acoustics STC
- 45 dB
- Acoustics OITC
- 38 dB
- Opening & closing resistance
- Class 3
Safety
- Burglar resistance
- RC2
- Operating Forces Class
- Class 1
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 4-pane
- 6 1/16 inch
- Min. width meeting section
- 5 11/16 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
- 9/16 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