Jansen VISS Parallel Vent Windows

The VISS SG parallel vent window integrates not only seamlessly into the VISS SG façade by which the all-glass optics can develop their full effect but it can also be installed in the standard VISS system and the VISS Basic System – for the face widths 50 mm and 60 mm. The VISS parallel vent window can be installed as a mere SG variant or alternatively as a variant with a subtle glazing bead. The glazing bead design is also used to mechanically secure the outer pane. In the SG variant, the panel does not appear visually from the outside. The steel material allows maintaining a narrow decorative interior and at the same time the implementation of large glass surfaces which convey the feeling of wide space. The use of double and triple insulation glass up to 58 mm glass thickness and the possibility of natural ventilation take into consideration the increasing requirements of energy saving and contribute to the wellbeing of the user.​

  • Profiles made of hot-dip galvanized steel
  • Suitable for powder-coating or stove enamel finish
  • Parallel vent window - manual or motor operated
  • Concealed fittings
  • Add-on electric chain drive
  • Leaf weights up to 300 kg
  • Maximum leaf dimensions (W x H) 4000 mm x 4000 mm
  • Grid surface up to maximum 4m2
  • Glass thicknesses of 28 to 58 mm
  • Mechanic fixing of the glass to the leaf frame – no gluing necessary
  • In the motorized variant no locking motors are necessary
  • Designed as Structural Glazing (SG) variant or with glazing bead
  • Assembly of double and triple insulation glass
  • CE marking in accordance with product standard EN 14351-1
  • Thermal transition coefficient from Uf > 1.8 W/m2K
  • Driving rain impermeability up to class 9A
  • Air permeability up to class 4
  • Resistant against wind load up to class B/C 4
  • TRAV positive tested (Technical Rules for Crash-proof Glazing)
Product Window
Material Steel
Energy Thermally insulated (1,3 ≤ Uf ≤ 2,0)
  • Standard
Key figures
  • Thermal insulation Uf in W/m²K von: 1,8
  • Pulver: all Variations
  • Nasslack: all Variations
  • Luftdichtheit: 4
  • Schlagregendichtheit: 9A
  • Widerstand gegen Windlast: B/C4

All approvals, certificates, classifications, technical assessments and other documents can be found at: