OS2 75

Windows/doors with minimum sections and high performance, with endless variations in the profiles and types of openings

OS2 75 is part of the group of OS2 systems studied, conceived and designed by Secco Sistemi to replace the doors and windows used from the nineteenth century up to the middle of the last century. This thermal break steel window comes in an array of more than 40 profiles, with visible sections reduced to the minimum: from just 27 mm to 62 mm and 77 mm depth. The endless variations of OS2 75 correspond to the needs of an architectural project which designs the window in every single detail, calibrating the borders with care to vary harmoniously the play of light and shadow on the façades, both interior and exterior. OS2 75 offers the possibility to design different types of opening that can be freely composed in endless combinations in the glass curtain walls: the tilt & turn sash comes in dimensions of up to 130 x 290 cm with glazing panels of up to 50 mm, with concealed hinges and break-in-resistant closing mechanisms. Pivoting and hinged fixtures increase interior space with sashes of up to 100 x 290 cm, with reduced dimensions and thin, congruent section profiles. The sliding hinges, bottom and top rails are concealed when the doors are shut. The performance of the OS2 75 thermal break system has been tested by the best European certifying laboratories in compliance with the current specific standard EN 14351-1 regulations.

OS2 75 Window Corner

OS2 75

OS2 75 window corner, external view, in burnished stainless steel with triangular glazing bead and concealed hinge.

OS2 75

OS2 75 window corner, internal view, in burnished stainless steel with triangular glazing bead and concealed hinge.

OS2 75 Window Inward-opening tilt & turn mechanism

System And Performance

OS2 75

OS2 inward opening window is an integrated system with accessories, seals and thermal break profiles 77 mm deep allowing for a wide range of windows, rectangular, shaped or curved. They can be equipped with double glazing up to 50 mm thick. The system allows for the possibility to have a tilt & turn opening mechanism.

OS2 75

The sealing of the door and window frames is guaranteed by a weep system with central sealing gasket and internal rebate seal. The performance of OS2 thermally insulated system has been tested by the best European certifying labs under the reference standards EN 14351-1.

Size And Variations

OS2 75

Lower section | frame section 47 mm

OS2 75

Lateral section | frame section 47 mm

OS2 75

Central section | frame section 62 mm

OS2 75

Glazing bar | frame section 36 mm

OS2 75
Galvanised Steel
OS2 75
Stainless Steel
OS2 75
Corten Steel
OS2 75
Brass

OS2 Is available in galvanised steel – in a wide range of colours and surface finishes – in AISI 316L polished or ScotchBrite stainless steel, corten steel and in brass (OT67 copper alloy).

OS2 75
Rectangular
OS2 75
Grooved
OS2 75
Triangular
OS2 75
Thin (not available for tilt & turn mechanism)

Rectangular, grooved, triangular and thin, the wide range of glazing beads allows for a variety of different designs for the internal window light. the wide choice available visually recalls the traditional “iron window” profiles.

OS2 75
Truncated vitruvio handle h.116 | d.12 mm
OS2 75
Square vitruvio handle h.116 | l.12 mm
OS2 75
Rounded vitruvio handle h.116 | d.15 mm
OS2 75
Truncated L-shaped vitruvio handle h.116 | d.12 mm
OS2 75
Square L-shaped vitruvio handle h.116 | l.12 mm
OS2 75
Weld-on hinge h.60/80/116 mm d.10 /13/16 mm
OS2 75
Two-wing hinge h.81 | d.12 mm
OS2 75
Three-wing hinge h.90 | d.15 mm
OS2 75
Concealed

Two and three-wing hinges are adjustable and are supplied in galvanised steel, stainless steel, burnished stainless steel and corten steel. weld-on hinges are in galvanised steel. The following models are adjustable: h.80|d.13mm and h.116|d. 16mm.

OS2 75 Door Inward-Opening

System And Performance

OS2 75

OS2 inward opening door is an integrated system with accessories, seals and thermal break profiles 77 mm deep allowing for a wide range of doors, rectangular, shaped or curved. They can be equipped with double glazing up to 50 mm thick. The sealing of the door frames is guaranteed by a weep system with central sealing gasket, a three-side internal rebate seal and an automatic retractable seal under the socle or bottom rail.

OS2 75

Each solution is equipped with a related set of accessories integrated in the system. The performance of OS2 thermally insulated system has been tested by the best European certifying labs under the reference standards EN 14351-1.

Size And Variations

OS2 75

Lateral section | frame section 47 mm

OS2 75

Central section | frame section 62 mm

OS2 75

Bottom rail | frame section 47 mm

OS2 75

Glazing bar | frame section 36 mm

OS2 is an internally and externally rebated system with 47 mm face lateral sections and 62 mm central section. For frames with multiple lights a 36mm thermal break profile is used

OS2 75
Galvanised Steel
OS2 75
Stainless Steel
OS2 75
Corten Steel
OS2 75
Brass

OS2 Is available in galvanised steel – in a wide range of colours and surface finishes in AISI 316L polished or ScotchBrite stainless steel, corten steel and in brass (OT67 copper alloy).

OS2 75
Rectangular
OS2 75
Grooved
OS2 75
Triangular
OS2 75
Thin

Rectangular, grooved, triangular and thin, the wide range of glazing beads allows for a variety of different designs for the internal window light. the wide choice available visually recalls the traditional “iron window” profiles.

OS2 75
Truncated vitruvio handle h.116 | d.15 mm
OS2 75
Square vitruvio handle h.116 | l.15 mm

The handles come in paintable raw brass, burnished brass, polished chrome brass and polished brass; the square version is also available in corten steel.

OS2 75
Weld-on hinge h.60/80/116 mm d.10 /13/16 mm
OS2 75
Two-wing hinge h.81 | d.12 mm
OS2 75
Three-wing hinge h.90 | d.15 mm

Three-wing hinges are adjustable and are supplied in galvanised steel, stainless steel, burnished stainless steel and corten steel. Weld-on hinges are in galvanised steel: the following models are adjustable: h.80 | d.13mm and h.116 | d.16mm.

EBE 75 Info

In Paris, a short distance away from Place de Vosges, the Hotel Voisyn is one of the grand “hotels particuliers” or townhouses of the old district of Marais. It was built on the structural plan of the great palaces in the era of Louis XIV and spreads between the court, at the entrance from Rue Turenne,  The important renovation of the Hotel Voisyn has enhanced the character of the different parts of the construction to design a refined residential building, with fifty units of different types and dimensions: elegant apartments and sophisticated lofts at double heights with mezzanines or  and the garden at the back. Renovated in the XVIIIth century, it has maintained up to today the refined elegance that distinguished the Parisian architecture of the eighteenth century. At the end of the nineteenth century, a new factory building was erected in the grounds of the ‘hotel’ intermediate floors and large glazing panels overlooking the garden. An important theme is that of the doors and windows for this façade; they must guarantee the quality, duration and aesthetical elegance of the finishes, combined with the aspect of comfort that characterises the luxury of these apartments furnishing an interesting example of industrial architecture of this period. The luxury of this “jewel of Marais”, solid and imposing, blends harmoniously with the slender structures in cast iron and the transparent walls typical of the nineteenth-century industrial archeology of iron and glass. and lofts while at the same time respecting the historical nature of the building in the dimensions and shapes of the profiles, maintaining the original design of the steel window. Naturally the choice had to be Secco Sistemi’s OS2 75.1 profile in painted galvanised steel

OS2 75