OS2 75 thermal break steel windows | window and door galvanised steel stainless steel corten  steel brass | Seccosistemi thermal break
OS2 75 thermal break steel windows - thermal break galvanised steel stainless steel corten  steel brass | Seccosistemi

OS2 75

Thermal break steel window with tilt-and-turn fitting for glazing up to 50 mm, profiles from 27 mm, central section 62 mm and sashes that can be selected in the prospectus

  1. glazing bead
  2. housing for glazing of up to 50 mm
  3. internal and external rebate
  4. hardware slot
  5. internal rebate seal
  6. open joint gasket and double seal rebate system
  7. composite structural thermal break polyurethane
  8. composite structural thermal break polyamide
OS2 75 is the thermal break steel window: flexible system, slender profiles with glazing of up to 50 mm

OS2 75

OS2 75 is part of the group of OS2 systems studied, conceived and realized 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 realize 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

design of the variations OS2 75 a wide range of more than 40 profiles to realize the fixture designed in every single detail

The small profiles of the system are meticulously designed so that in the outline every line and fold is essential for reaching the very high levels of performance of thermal and sound insulation. There are more than 40 profiles to choose from among which to find solutions for any formal or functional project requirement and thus to realize in every detail the fixture desired. For glass curtain walls or three-dimensional façades, light screens or doors and windows, the choices offered by the OS2 75 system are many and varied: the profiles can house flush-mounted and non-flush-mounted glass panels, enhance the borders of the monocoloured area of the windows that make up the front, or render them imperceptible to the eye, put together sashes with fixed panes or which can be opened correspondingly in the design of the façade. To better distinguish the various choices available, we have created two subsystems: OS2 75.1 and OS2 75.2. In the case of OS2 75.1 the glass panels are not flush-mounted and the profile of the frame goes to underline the perimeter of the sash. With OS2 75.2, on the other hand, the glass panels are flush-mounted and the profile sections can be continuous, both with regard to the fixed struts and in the perimeter of the sashes.

OS2 75.1

27/62mm
  1. sashes can be easily distinguished in the front view
  2. glass panels not flush-mounted between sashes and fixed panes

OS2 75.2

62/62mm
  1. possibility of sections always the same between sashes and fixed panes
  2. flush-mounted glazing between sashes and fixed panes
  3. sash
  4. fixed pane
double-sash windows with the same design for profiles which trace the external perimeter and the central section
in the glazing panel the profiles of fixed and openable sashes have the same design
the central section of the two-leaved door has a reduced section while the profiles framing it are pronounced
the fixed glazing is divided into two parts by a horizontal profile of the same design as the perimetral border
the glazing is measured by slender profiles with the two-leaved opening evident at the centre
the glazing is characterized by the seamless pattern and undifferentiated profiles, making the two-leaved doors much less conspicuous

glazing bead variations OS2 for the designer: different types of glazing beads for a wide choice of details.

  1. glazing bead
  2. glazing bead mounting clips
straight square glazing bead
straight square glazing bead
triangular
triangular
rounded square
rounded square
thin
thin

OS2 75 window inward-opening tilt & turn mechanism

system and performance

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.
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.

wind resistance - test pressure 5
wind resistance - frame bending C
water tightness 9A
acoustic performance (with Rw per IGU 42dB) 45 dB
thermal transmittance (with Ug glass 0,7 W/m2K) 1,04 W/m²K*
air permeability 4
*calcolo rif. EN ISO 10077/1

size and variations

OS2 is a 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.

lower section | frame section 47 mm
lateral section | frame section 47 mm
central section | frame section 62 mm
glazing bar | frame section 36 mm

handles

maniglia truncated vitruvio handle
truncated vitruvio handle
h.116 | d.12 mm
square vitruvio handle
h.116 | l.12 mm
rounded vitruvio handle
h.116 | d.15 mm
truncated L-shaped vitruvio handle
h.116 | l.12 mm
square vitruvio handle ad L
h.116 | l.12 mm

hinges

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

weld-on hinge
h.60/80/116 mm
d.10 /13/16 mm
two-wing hinge
h.81 | d.12 mm
three-wing hinge
h.90 | d.15 mm
concealed

OS2 75 door inward-opening

system and performance

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.
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.

wind resistance - test pressure 3
wind resistance - frame bending C
water tightness 1A
thermal transmittance (with Ug glass 0,7 W/m2K) 1,02 W/m²K*
air permeability 3
*calcolo rif. EN ISO 10077/1

size and variations

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 pro le is used.

lateral section | frame section 47 mm
central section | frame section 62 mm
bottom rail | frame section 47 mm
glazing bar | frame section 36 mm

handles

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

truncated vitruvio handle
h.116 | d.15 mm
square vitruvio handle
h.116 | d.15 mm

hinges

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

weld-on hinge
h.60/80/116 mm
d.10 /13/16 mm
three-wing hinge
h.90 | d.15 mm

OS2 75 window outward-opening

system and performance

OS2 outward 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. Each solution is equipped with a related set of accessories integrated in the system.
The sealing of the door and window frames is guaranteed by a double rebate seal system. The performance of OS2 thermally insulated system has been tested by the best European certifying labs under the reference standards EN 14351-1.

wind resistance - test pressure 5
wind resistance - frame bending C
water tightness 7A
prestazione acustica (con RW per IGU 42 dB) 42 dB
thermal transmittance (with Ug glass 0,7 W/m2K) 1,04 W/m²K*
air permeability 4
*calcolo rif. EN ISO 10077/1

size and variations

OS2 is a rebated system with 46 mm face lateral sections and 47/62 mm central section. For sashes with multiple lights a 36mm thermal break profile is used.

lower section | frame section 47 mm
lateral section | frame section 47 mm
central section | frame section 62 mm
glazing bar | frame section 36 mm

handles

The handles come in paintable raw brass, either burnished, polished chrome brass or polished brass; the square version also comes in corten steel.

maniglia truncated vitruvio handle
truncated vitruvio handle
h.116 | d.12 mm
square vitruvio handle
h.116 | l.12 mm
rounded vitruvio handle
h.116 | d.15 mm
oval vitruvio handle
h.80 | l.30 mm

hinges

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

weld-on hinge
h.60/80/116 mm
d.10/13/16 mm
three-wing hinge
h.90 | d.15 mm

OS2 75 door outward-opening

system and performance

OS2 outward opening door 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 sealing of the door and window frames is guaranteed by a double rebate seal system and an automatic retractable seal under the socle or bottom rail.
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 standard EN 14351-1.

wind resistance - test pressure 5
wind resistance - frame bending C
water tightness 1A
acoustic performance (with Rw per IGU 42dB) 38dB
thermal transmittance (with Ug glass 0,7 W/m2K) 1,02 W/m²K*
air permeability 3
*calcolo rif. EN ISO 10077/1

size and variations

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

lateral section | frame section 47 mm
central section | frame section 62 mm
bottom rail | frame section 54 mm
glazing bar | frame section 36 mm

handles

truncated vitruvio handle
h.116 | d.15 mm
square vitruvio handle
h.116 | l.15 mm

hinges

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

weld-on hinge
h.60/80/116 mm
d.10/13/16 mm
three-wing hinge
h.90 | d.15 mm

OS2 75 hinged

system and performance

OS2 75 folding sashes of large dimensions up to 1000 x 2900 mm with slim profiles and seamless frame interiors. A new thermal break solution to interpret the transition from the interiors to the exteriors: the opened sashes offer reduced volumes thus increasing the interior spaces. Hinges, upper and lower tracks are concealed when the door is in the closed position.
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.

wind resistance - test pressure 2
wind resistance - frame bending B
water tightness 1A
acoustic performance (with Rw per IGU 42dB) 38dB
thermal transmittance (with Ug glass 0,7 W/m2K) 1,20 W/m²K*
air permeability 3
*calcolo rif. EN ISO 10077/1

size and variations

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

central section | frame section 62 mm
upper section | 62 mm visible section
lower section | 62 mm visible section

handles

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

maniglia truncated vitruvio handle
truncated vitruvio handle
h.116 | d.12 mm
square vitruvio handle
h.116 | l.12 mm
rounded vitruvio handle
h.116 | d.15 mm
oval vitruvio handle
h.80 | l.30 mm

hinges

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

weld-on hinge
h.60/80/116 mm
d.10/13/16 mm
three-wing hinge
h.90 | d.15 mm

OS2 75 horizontal pivot door

system and performance

OS2 outward 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 frames is guaranteed by a double rebate seal system under the bottom rail.
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.

wind resistance - test pressure 5
wind resistance - frame bending C
water tightness 6A
acoustic performance (with Rw per IGU 42dB) 42dB
trasmittanza termica (con Ug vetro 0,6 W/m²K*) 1,48 W/m²K*
air permeability 4
*calcolo rif. EN ISO 10077/1

size and variations

OS2 is a rebated system with 62 mm visible sections. For sashes with multiple lights a 36 mm thermal break profile is used.

upper side section | 62 mm visible section
lower side section | 62 mm visible section
lower section | 62 mm visible section
glazing bar | 36 mm visible section

handles

Handles come in paintable raw brass, burnished brass, polished chrome brass and polished brass: the square version is available also in corten steel.

maniglia truncated vitruvio handle
truncated vitruvio handle
h.116 | d.12 mm
square vitruvio handle
h.116 | l.12 mm
rounded vitruvio handle
h.116 | d.15 mm
oval vitruvio handle
h.80 | l.30 mm

hinges

pivot
h.80

OS2 75 vertical pivot door

system and performance

OS2 outward 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 frames is guaranteed by a double rebate seal system under the bottom rail.
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.

wind resistance - test pressure 5
wind resistance - frame bending C
water tightness 6A
acoustic performance (with Rw per IGU 42dB) 42dB
thermal transmittance (with Ug glass 0,6 W/m2K) 1,48 W/m²K*
air permeability 4
*calcolo rif. EN ISO 10077/1

size and variations

OS2 is a rebated system with 62 mm visible sections. For sashes with multiple lights a 36 mm thermal break profile is used.

upper side section | 62 mm visible section
lower side section | 62 mm visible section
lower section | 62 mm visible section
glazing bar | 36 mm visible section

handles

Handles come in paintable raw brass, burnished brass, polished chrome brass and polished brass: the square version is available also in corten steel.

maniglia truncated vitruvio handle
truncated vitruvio handle
h.116 | d.12 mm
square vitruvio handle
h.116 | l.12 mm
rounded vitruvio handle
h.116 | d.15 mm
oval vitruvio handle
h.80 | l.30 mm

hinges

pivot
h.80