Concealed sash window

FRAME+ 75 WB

Using FRAME+ 75 WB as a concealed sash window offers very filigree elevation widths, not showing any visible window bars. This version is also available as a floating window, with overlapping casement, and with decorative glazing bars.

  • High-insulation windows with Uf = 1,6 W/(m²K).
  • System depth 75 mm.
  • Application as window for punched openings or, with outer frame extension, for integration into curtain wall.
  • No visible glazing beads.
  • Very slim visual appearance.
  • Practicable as dummy mullion sash.

 

FRAME+ 75 WB
 

Technical Data

FRAME+ 75 WB
System values
Uf-value1 ≥ 1.6 W/(m²K)
System depth 75 mm
Applications
Punched opening window X
Curtain wall insertion element X
Casement sash X
Window curtain wall
Application limits*
Max. weight turn-tilt 130 / 200 kg**
Max. weight turn 130 / 200 / 300 kg**
Max. weight ­concealed fitting 150 kg
Max. sash dimension2 1,450 x 1,900 mm /
1,100 x 2,500 mm
Infill thickness sash 24 to 44 mm
Infill thickness fixed glazing 4 to 50 mm

1 Thermal insulation based on DIN ISO 1077-2
2 Admissible sash dimensions see diagramm of fittings.
* Applications outside these limits, would be subject to an assessment by our Technical Department
** 130 kg with standard fitting up to 200 / 300 kg with reinforced fitting

Approvals / CE-labelling
based on product standard for windows and exterior doors EN 14351-1

  FRAME+ 75 WB1
Air permeability class 4
Resistance to wind load class C5 / B5
Water tightness up to E 1350
Operating forces class 1 and 2
Resistance against impact class 3
Airborne sound insulation2 Rw ( C; Ctr ) = 38 ( -1; -4 ) dB
Rw ( C; Ctr ) = 42 ( -1; -4 ) dB
Mechanical strength class 4
Burglar resistance class WK2
Continuous-operational testing
EN 14400:2002-10
class 2

1 Tested to RAL GZ 695
2 The values are referred to the standard size of 1.23 x 1.48 m