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ConceptWall 50 Attic Window

Technical information

Performance

Energy

Thermal insulation - Uw Double: 0.23 Btu/hr.ft².°F
Thermal insulation - Uw Triple: 0.25 Btu/hr.ft².°F
Thermal insulation - Uf: 1.3 W/m²K
Thermal insulation (Most Common) - Uf: 1.3 W/m²K

Comfort

Air tightness: 0.02 cfm/ft³
Air tightness: Class 4 (600Pa)
Water tightness: Class E1200 (1200Pa)
Water tightness: 1200
Acoustics STC: 41 dB
Acoustics OITC: 35 dB
Acoustics - Rw(C;Ctr): 35(-1;-4) dB

Safety

Impact resistance: E4

* Note: Performances and properties may be different depending on the profile combinations

Properties

Max. dimensions & weight

Min. height of vent: 500 mm
Max. height of vent: 3500 mm
Min. width of vent: 500 mm
Max. width of vent: 1500 mm
Max. surface of vent: 4.65 m²
Min. intertia mullion - Ix: 14 cm⁴
Max. intertia transom - Ix: 612 cm⁴
Min. intertia transom - Iy (glass load): 8 cm⁴
Max. intertia transom - Iy (glass load): 59 cm⁴

Sightlines

Min. width T-profile: 50 mm
Min. visible width (interior view): 50 mm
Min. visible width (exterior view): 50 mm
Min. depth mullion: 42 mm
Max. depth mullion: 300 mm
Min. depth transom: 5 mm
Min. wall inclination - standard: 5 degrees
Max. wall inclination - standard: 90 degrees

Glazing

Glazing method: Dry glazing - External glazing - Glazing bead - Structural Glued Glazing - Structural Glued Stepped Glazing
Min. glass thickness - frame/element: 28 mm
Max. glass thickness - frame/element: 62 mm
Min. glass thickness - vent: 24 mm
Max. glass thickness - vent: 62 mm