Façade System AOC 50 ST.SI

Passive house-certified add-on construction on steel for façades and skylights

With the Schüco AOC 50 ST.SI (Steel Super Insulated) façade system, thanks to a ground-breaking isolator design, highly thermally insulated skylights and vertical façades can be created in a 50 mm system width on steel substructures, with a wide range of design options.

Patented system components enable simple and reliable designs, including load transfer and screw guidance, even with large pane dimensions and triple glazing.

An innovative sealing system ensures maximum thermal insulation in the roof area thanks to an integrated screw guide – with optimised handling during fabrication.

The passive house-certified add-on construction on steel combines energy-efficient, aesthetically pleasing construction with efficient fabrication and installation.

Category:

Fabrication benefits

  • Sealing components without use of sealant in the vertical façade for efficient and secure installation
  • Use of building authority-approved, powder-actuated fastener technology on steel substructures: minimised fabrication times compared to welding
  • Patented screw guide: different infill thicknesses can be inserted reliably and efficiently

Technical information

Uf value of frame (≥)0.83 W/(m²·K)
Min. face width50 mm
Max. glass/panel thickness64 mm
Max. weight1500 kg
Surface finishesPowder, Anodised, Paint
Air permeabilityAE 1350
Max. sound reduction Rwp53 dB(A)
WatertightnessRE 1350
Impact resistanceI5/E5
Burglar resistanceUp to RC3
Suitable for safety barrier loadingYes
Max. unit weight1500 kg
Min.-max. face width50 mm
Face width of pressure plate / cover cap profile50 mm
Face width, outside50 mm
Face width, inside50 mm
Face width of mullion50 mm
Face width of frame50 mm
Face width of transom50 mm
Min. glass/panel thickness26 mm
Min.-max. glass/panel thickness26…64 mm
Max. glass/infill weight1500 kg
Installation angle7-105°
Polygon façade angle20°
Skylight construction, min. vert. incline7°
Skylight construction, max. vert. incline105°
Skylight construction, min.-max. vert. incline7…105°
Skylight constructionYes
DrainageYes
Drainage levels3
Wind load resistance2.0/3.0 [kN/m²]
Sun shading attachmentYes
Spandrel safety barriersSurface-mounted, Façade-mounted
CertificatesPassive house certificate
CE markingYes
Passive house compliantYes
Passive house classphA
RecyclableYes
StandardsDIN EN 1627, DIN EN 13830, General building authority approval
Building authority approvalYes

Documentation

[B] System overview Schüco AOC

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[C] Schüco AOC 50

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[G] Steel Substructures Vertical façade

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[L] Special points

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Specification texts

Schüco AOC 50+ ST.SI, highly thermally insulated aluminium add-on construction on a steel load-bearing structure (gasket system)
As a mullion/transom construction for multi-storey façades with a 50 mm external face width

Design features:
Façade construction with an aluminium pressure plate and foam strip with a highly reflective aluminium foil to prevent thermal radiation.

Load-bearing structure:
Selection
The load-bearing structure of the façade construction must be fabricated from steel rectangular profiles/steel supports.
Or
The load-bearing structure of the façade construction is to be fabricated from steel rectangular profiles/steel supports supplied by the customer.
End
The load-bearing steel construction is on the inside. The welded construction must be calculated and executed in accordance with DIN 18 800.
In faceted façades, the width of the steel profile must not exceed 60 mm if insert units are to be installed.
The corrosion protection of steel structures must be in accordance with the VFF information sheet St. 01 “Coating of steel components in metal fabrication”.
The steel profiles must be prepared for paint to be applied by others. The contractor for the painting work must be advised that the profile surfaces must be cleaned and primed before being painted.
The glazing system consists of aluminium cover caps and pressure plates (clamping connection).
The glazing system is attached to the substructure via roller-shaped, galvanized steel basic profiles using alternating hole welding. The steel profiles have two rows of longitudinal holes 250 mm apart for this purpose. Optionally a corresponding aluminium basic profile can be used by screwing it to steel hollow profiles. Insulating tape must be fitted between the steel substructure and the aluminium base profile to prevent contact corrosion and expansion-related noise. A large-volume EPDM gasket with integral ventilation channels, structural height 15 mm, forms the basis for the installation of the glazing and the ventilation of the construction. The joints of the gaskets to be laid horizontally and vertically must overlap and be sealed. The corresponding alternating notches must be made in accordance with the system manufacturer’s recommendations.

Glazing / insert units:
All glazing, even in the insert units, lies in the same plane. The glazing gaskets made from weather-resistant, black EPDM on the room side are of different depths in the mullions and transoms (6 mm offset).
Two individual gaskets made from weather-resistant, black EPDM, with a height of 5 mm, are positioned on the outside. Moulded gasket intersections made from EPDM must be used where mullions and transoms join.

Ventilation:
Rebate base ventilation and vapour pressure equalisation are achieved at all four corners of each module field into the mullion rebate.
For field drainage and ventilation, appropriate openings must be made in the aluminium pressure plates, cover caps and gaskets.

Dimensions and design of the exterior cover caps:
Cover cap (mullion) 20 mm
Cover cap (transom) 15 mm

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CAD data

Planning principles

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System drawings

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Rule details

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Planning principles

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System drawings

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Rule details

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