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High-performance concepts for ventilation flaps

The Marienturm is located at the pulsating heart of the Frankfurt Central Business District, directly opposite Deutsche Bank. With its striking silhouette, it fits into the skyline of the financial metropolis as an important landmark.

In addition to 4,200 Turn-Only windows or Turn-Only ventilation flaps with Roto AL Designo concealed hardware, 1675 parallel inward opening ventilation flaps are installed in the Marienturm. These tightly sealed, easy-touse ventilation flaps are equipped with parallel projecting scissor stays from the Roto PS Aintree range.

Hardware technology:

  • Roto AL Designo
  • Roto PS Aintree


Project data

Frankfurt am Main, Germany
Project developer
Pecan Development GmbH
Projektgesellschaft Marieninsel Ost GmbH & Co. KG
Type of building
Office building
Building height
155 m
Systems and profiles
Hueck WS 075
Frame material

Roto solution

Roto AL Designo

Roto AL Designo

Concealed hardware for aesthetic aluminium windows and balcony doors

Requirements: 4,200 sets; Sash dimensions: 825 x 2,735 mm to 905 x 3,555 mm; Sash weight: 125 – 180 kg; Turn-Only as maintenance windows.

Solution: Roto AL Designo with different hardware configurations as object release; High sound insulation and tightness due to active locking all round; High operating comfort and safe function.

Roto PS Aintree

Roto PS Aintree

Parallel stainless-steel stays for outward opening windows

Requirements: 1,675 sets; Sash dimensions: 120 x 1,500 mm; Sash weight: 40 kg; Ventilation flap.

Solution: Roto PS Aintree; Special construction of a combination of parallel shears (Roto PS Aintree) and Roto AL with special corner drive; High sound insulation and tightness due to active locking all round; High operating comfort and safe function.

Your contact for customised aluminium solutions

Roto Object Business

Certainty in planning and implementing customised aluminium solutions

Technically and aesthetically demanding project implementation requires innovative window and facade element solutions. For particularly large, energy efficient aluminium windows and doors, for which standard components do not fit, we develop economically viable and tailored solutions.

The Roto Object Business experts are your reliable partners for projectspecific window and door technology inquiries. We provide you with customised hardware solutions tailored to your individual requirements with which to implement your ideas.

Roto Object Business