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Schueco Aluminium Window System 75.SI+

Flexible standard window series with maximum thermal insulation and Schüco SimplySmart technology, which has been optimised for fabrication

In the basic depth of 75 mm, the Schüco Aluminium Window System modular system offers SI designs (Super Insulation) which combine maximum thermal insulation with impressive properties in terms of function, design and fabrication. The standard series – Schüco Aluminium Window System 75.SI+ – features outstanding thermal insulation with a face width of 117 mm. With a continuous centre gasket and new glazing rebate insulation, the Schüco SimplySmart technology ensures more efficient fabrication. In combination with the new Schüco AvanTec SimplySmart mechanical generation of fittings, installation can be completed considerably more quickly.

As a block window with a concealed vent frame, Schüco Aluminium Window System 75 BS.SI+ fulfils the highest requirements in terms of architecture thanks to its slim design and maximum transparency.

Schüco Aluminium Window System 75 WF.SI+ is based on the Schüco block window and is designed specifically for the economical construction of ribbon windows with storey-height glazing with a homogeneous mullion/transom appearance.


  • Uf values from 0.92 W/(m²K) for aluminium windows with maximum thermal insulation
  • Uf value = 1.2 W/(m²K) with 117 mm face width, Uw value = 0.90 W/(m²K) and Ug value = 0.6 W/(m²K)
  • Centre gasket with fin in microcellular rubber design
  • Block window system variant with outstanding thermal insulation


  • Attractive design options: Schüco Aluminium Window System 75 BS.SI+ with concealed vent as block window and Schüco Aluminium Window System 75 WF.SI+ with mullion/transom appearance
  • Optional vent in standard and RL (Residential Line) style


  • Motorised fittings solutions possible with Schüco TipTronic


  • Burglar resistance to RC 3

Enhanced function

  • Outward-opening also available as an option
  • New continuous Schüco SimplySmart centre gasket with optimised self-positioning – new: also available for BS and WF systems
  • EPDM gasket corners not required
  • Corner seals for the outer frame integrated
  • Simplified assembly processes reduce fabrication time
  • Glazing rebate insulation as a moulded piece: more efficient fabrication without time-consuming manual working steps, reduction in assembly time
  • System variant Schüco Aluminium Window System 75 BS.HI+ enables narrow face widths without bonding the rebate base



Technical information

CAD data

Test documents