OS2 65

Secco Sistemi carpentry in steel; flexible system and reduced visible sections.

Thermal cut steel window: flexible system, thin profiles with glazing up to 40 mm.
OS2-65- Secco Sistemi | Sistema de ventana minimalista acero

Minimalist Steel Window System

OS2 65 is a flexible and versatile system to realize infinite device variations and to design in detail the exact window required by the customer, with the minimum cross-sections and high quality performance of the OS2 profile group.

OS2 65 Performance

  • OS2 65 with profiles of only 27 mm – 47 mm for the side section, 62 mm for the center section and a depth of 65 mm. It can accommodate glazing up to 40 mm.
  • The performance of the OS2 thermal cutting system has been tested by the best European certification laboratories, according to the current specific standard EN 14351-1.

OS2 65 Features

  • Solutions for facades, doors or windows, the solutions offered by OS2 65 joinery are very varied.
  • System of the most popular among the projects that require steel, design, and functionality.

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OS2 65 Technical Data Sheet

Tilt and turn mechanism for inward opening of the window.

Wind resistance – pressure test4 4
Wind resistance – frame bendingC
Water tightness8A
Thermal transmittance1,38 W / m2K
Air permeability4 4
Acoustic performance43 dB


Different openings (possibility of exterior and interior opening)
Glazing Beads
OS2 65 Secco Sistemi Sistema de ventana minimalista acero
accesorios-OS2-65- Secco Sistemi | Sistema de ventana minimalista acero

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OS2 65 finishes

acabados acero secco sistemi
acero corten secco sistemi
latón acero cortensecco sistemi
lacado acero corten secco sistemi
titanio acero corten SECCO SISTEMI


Corten steel is a type of steel made from a chemical alloy that protects it from atmospheric corrosion. Thanks to this, and its natural and decorative appearance, it is a very versatile material for architects and designers.


Brass is an alloy of copper and zinc, with a proportion of more than 50% copper. Brass is often used in projects requiring high design and aesthetics.


The titanium finish is achieved by a chemical oxidisation process that provides a high quality design and metallic aesthetics.


The lacquering treatment consists of protecting and painting the surface of the profile with a homogeneous layer of paint. These treatments are carried out with the utmost respect for the environment, which is why all paints are lead-free.


Stainless steel is a material widely used in construction due to its hardness and high resistance to corrosion.

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