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FRAME+ 90 WB – Casement sash window

Product Objects

Using FRAME+ 90 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.


  • Safe glazing technology in conformity with the standards offering large ventilation spaces and an exterior gasket frame with corner vulcanisation
  • Individual design options for the interior outer frame profile by using colour adaptable cover profiles
  • Insulation of the glazing rebate by glazing rebate insulating block with large ventilation spaces and insulation of the hollow profile sections by high thermal insulating insertions
Uw-value1 passive house = 0.75 W/(m2K)
Uf-value2 ≥ 0.89 W/(m2K)
System depth 90 mm
Applications Punched opening window
Curtain wall insertion element
Casement sash
Application limits3
Max. weight turn-tilt
surface-mounted fitting
130 / 160 / 200 kg *
Max. weight turn
surface-mounted fitting
130 / 160 / 200 / 300 kg *
Max. weight
consealed fitting
150 / 180 kg
Max. sash dimensions4 1,450 x 1,900 mm /
1,450 x 3,000 mm
Infill thickness sash 40 to 60 mm
Infill thickness fixed glazing

1 Determined with glass Ug = 0.7 W/(m2K)
2 Thermal insulation based on DIN ISO 10077-2
3 Applications outside these limits, would be subject to an assessment by our Technical Department
4 For authorized sash sizes, see fitting diagram in the relevant planning documents
* 130 / 160 kg with standard fitting up to 200 / 300 kg with reinforced fitting

according to product standard for windows and exterior doors EN 14351.1
Air permea­bility1 Class 4
Resistance to wind load1 up to Class C5
Resistance against impact1
Water tightness1 up to E 1200
Operating forces1 Class 1
Airborne sound insulation2 Rw (C; Ctr) up to 43 dB
Mechanical strength1 Class 4
Burglar resistance Class RC2 / RC3
testing EN 12400

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

Passive house

The climatic change and the energy transition represent comprehensive challenges, in particular to energetic building and renovation. Our passive house-certified window system fulfils these requirements, thus achieving maximum energy-saving potential.