An innovative door and window frame system with minimal bulk for sustainable architecture.

OS2 has been studied, conceived and realized by Secco Sistemi in order to provide historical and monumental buildings with door and window frames that could visually recall those used from mid-19th to mid-20th century (the typical iron windows).
The OS2 system combines in one product the need to integrate those architectural aspects and to meet the current regulations in terms of energy saving, living comfort and sustainability of products and processes used. The OS2 system is equipped with a 47 mm lateral and a 62 mm central section, made with thermal break profiles – integrated with a complete range of system accessories – allowing a wide range of openings.
The result is a high-design window frame, corresponding to the highest requirements of performance and insulation, and tested by the best laboratories of European certification.

OS2 window

Inward opening

System and performance

OS2 window with inward opening, equipped with accessories, gaskets and thermal break profiles with a 65 mm depth, allowing to realize windows in a wide range of variations: square, rectangular, curved or shaped, with insulating glazing up to 40 mm thick.
Each solution is complete with the specific accessories, certified and integrated with the system.
The sealing characteristics of the casing are guaranteed by a weep system with one central sealing gasket and an internal rebate seal. The performance of the OS2 thermal break system has been tested by the best laboratories of European certification, according to the current specific EN 14351-1 regulations.

Technical chart
wind resistance –test pressure 4
wind resistance – frame bending C
water tightness 8A
acoustic performance (with Rw per IGU 42 dB) 43 (-1;-4) dB
thermal transmittance (with Ug glass 1,0 W/m²K) 1,60 W/m2K
air permeability 4
break-in resistance
Size and variations

OS2 is a casing with internal and external rebate, with sections of 47 mm for the side section and of 62 mm for the central section. To subdivide the glazing for the frames, the system uses a thermal break profile of 36 mm.

Materials

OS2 Is available in galvanised steel – in a wide range of colours and superficial finishes – in brass (OT67 copper alloy) and corten steel.

Glazing bead variations

Straight square, rounded square and triangular: the wide range of glazing beads allows for a variety of different design for your internal window light. The great choice available visually recalls the traditional “iron windows” profiles.

Vitruvio handles

The handles are furnished in raw brass that can be painted, burnished brass, polished chrome and polished brass: the medium square version also comes in corten steel. Vitruvio small is made in both “T” and “L” version.

Hinges

The two- or three-leaf hinges are adjustable and are available in galvanized steel, stainless steel, burnished stainless steel and corten steel.
The weld-on hinges are in galvanized steel: the versions h.80 | d.13 mm and h.116 | d.16 mm are adjustable.

OS2 Door

Inward opening

System and performance

OS2 door with inward opening – a system complete with accessories, gaskets and thermal break profiles with depth of 65 mm allowing the realization of doors in a wide range of possible variations: square, rectangular, curved or shaped, with insulating glazing up to 40 mm thick.
The sealing characteristics of the frames are guaranteed by a weep system with a central sealing gasket and an internal three-side seal, and an automatic drop-down seal under the socle. Each solution is complete with specific certified accessories integrated with the system. The performance of the OS2 thermal break system has been tested by the best labs of European certification, according to the current specific EN 14351-1 regulations.

Technical chart
wind resistance – test pressure 1
wind resistance – frame bending C
water tightness 1A
acoustic performance
thermal transmittance (with Ug glass 1,0 W/m²K) 2K) 1,48 W/m2K
air permeability 2
break-in resistance
Vitruvio handles

The handles are furnished in raw brass that can be painted, burnished brass, polished chrome and polished brass: the medium square version also comes in corten steel.

Hinges

The three-leaf hinges are adjustable and are available in galvanized steel, stainless steel, burnished stainless steel and corten steel. The weld-on hinges are in galvanized steel: the versions h.80 | d.13 mm and h.116 | d.16 mm are adjustable.

OS2 Window

Outward opening

System and performance

OS2 window with outward opening – a system integrated with accessories, gaskets and thermal break profiles with depth of 65 mm which allows the realization of windows in a wide range of variations: square, rectangular, curved or shaped, with insulated glazing up to 30 mm thick.
Each solution has its specific accessories, certified and integrated with the system.
The sealing of the window frames is guaranteed by a double rebate seal system.
The performance of the OS2 thermally insulated system has been tested by the best European labs under the reference standard EN 14351-1.

Technical chart
wind resistance – test pressure 4
wind resistance – frame bending C
water tightness 8A
thermal transmittance (with Ug glass 1,0 W/m²K) 2K) 1,87 W/m2K
air permeability 3
break-in resistance
Size and variations

OS2 window with outward opening – an internal/external rebate frame with sections from 27 – 62 mm for the side section and of 62 mm for the central section. For the subdivision of the sash glazing the system uses a thermal break profile of 36 mm.

Materials

OS2 is available in galvanised steel – with a wide range of colours and variations – in brass (copper alloy 0T67) and in corten steel.

Glazing bead variations

Straight square, rounded square and triangular: the wide range of glazing beads allows a variety of different design for your internal window light. The great choice available visually recalls the traditional “iron windows” profiles.

Vitruvio handles

The handles are furnished in raw brass that can be painted, burnished brass, polished chrome and polished brass: the medium square version also comes in corten steel. Vitruvio small is made both in “T” and “L” version.

Hinges

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

OS2 Door

Outward opening

System and performance

OS2 outward opening door – a system fully integrated with accessories, gaskets and thermal break profiles with depth of 65 mm, allowing a wide range of possible variations: square, rectangular, curved or shaped, with insulating glazing up to 30 mm thick.
The sealing characteristics are guaranteed by a double rebate system and by a drop-down seal/retractable gasket under the socle. Each solution is complete with specific accessories certified and integrated with the system. The performance of the OS2 thermally insulated system has been tested by the best European certifying labs under the reference standard EN 14351-1.

Technical chart
wind resistance – test pressure 1
wind resistance –frame bending C
water tightness 1A
acoustic performance
thermal transmittance (with Ug glass 1,0 W/m²K) 2K) 1,89 W/m2K
air permeability 2
break-in resistance
Size and variations

OS2 is a rebated system with 47 mm face lateral sections and 62 mm central section. For the subdivision of the sash glazing the system uses a thermal break profile of 36 mm.

Materials

OS2 is available in galvanised steel – with a wide range of colours and variations – in brass (copper alloy 0T67) and in corten steel.

Glazing bead variations

Straight square, rounded square and triangular: the wide range of glazing beads allows a variety of different design for your internal window light. The great choice available visually recalls the traditional “iron windows” profiles.

Vitruvio handles

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

Hinges

Three-wing hinges are adjustable and available 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.