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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

Comfort

Air tightness
0.02 cfm/ft³
Acoustics STC
41 dB
Acoustics OITC
35 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
23 5/8 inch
Max. height of vent
59 1/16 inch
Min. width of vent
17 11/16 inch
Max. width of vent
137 13/16 inch
Max. surface of vent
5.25 m2
Min. intertia mullion - Ix
9/16 inch
Max. intertia transom - Ix
24 1/8 inch
Min. intertia transom - Iy (glass load)
5/16 inch
Max. intertia transom - Iy (glass load)
2 5/16 inch

Sightlines

Min. width T-profile
1 15/16 inch
Min. visible width (interior view)
1 15/16 inch
Min. visible width (exterior view)
1 15/16 inch
Min. depth mullion
1 5/8 inch
Max. depth mullion
11 13/16 inch
Min. depth transom
3/16 inch
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
1 1/8 inch
Max. glass thickness - frame/element
2 7/16 inch
Min. glass thickness - vent
15/16 inch
Max. glass thickness - vent
2 7/16 inch