Window System AWS 75 BS.HI+

Highly thermaly insulated block window with concealed vent for sophisticated design requirements

With outstanding thermal insulation values and a slimline design without visible vent contours, Schüco AWS 75 BS.HI+ (Block System High Insulation) meets the highest energy-efficiency and architectural requirements with the greatest possible transparency.

The aluminium block window system is part of the Schüco AWS modular system for the 75 mm basic depth and features optimised characteristics in terms of function, energy efficiency and design.

Thanks to a high level of system flexibility, attractive design solutions are possible for a wide range of architectural requirements in the building envelope: as a punched opening, ribbon window or insert unit in Schüco façade systems as well as a “floating window”.

The wide range of opening types includes designs such as side-hung and turn/tilt vents as well as bottom-hung toplights.

Another benefit of the block window series is the wide range of profiles for the system, including corner mullions, structural mullions, symmetrical and asymmetrical mullions, as well as TipTronic vent profiles. They enable the use of the Schüco TipTronic SimplySmart generation of electrical fittings, a fully integrated drive for numerous opening types.

The window system thereby sets standards in terms of planning and design flexibility for the construction of energy-efficient, stylish building envelopes.


Fabrication benefits

  • Maximum use of identical parts within the system and within the Schüco AWS modular system
  • Continuous centre gasket saves time-consuming manual work and installation steps: faster fabrication of the centre gasket compared to those sold by the metre with gasket corners; no interruption of the gasket level at the corners and gaskets do not need to be bonded
  • Insert outer frame with adapter gasket to compensate for different glazing thicknesses, for integration in Schüco mullion/transom façades
  • Schüco AvanTec SimplySmart fitting ensures efficient fabrication: flexible, simple and intuitive
  • Vent parts self-positioning and installed without tools and with no locking bar recess in the vent
  • Simplified and efficient locking bar preparation
  • Symmetrical cavity-fitted gearbox can be used on the right and left-hand side; simplified cutting of the locking bar and reduced storage requirements

Technical information

System basic depth75 mm
Min. face width67 mm
Uf value of frame (≥)1.4 W/(m²·K)
Max. glass/panel thickness52 mm
Max. vent width1500 mm
Max. vent height2200 mm
Max. sound reduction Rwp49 dB(A)
Air permeabilityClass 4
WatertightnessClass 9A
Burglar resistanceUp to RC3
Wind load resistanceClass C5 / B5
CE markingYes
Total basic depth85 mm
Width of vent frame85 mm
Max. vent weight160 kg
Min.-max. vent height540…2200 mm
Min.-max. vent width470…1500 mm
Outer frame face width67 mm
Vent frame face width0 mm
Max. face width of mullion181 mm
Min.-max. face width of mullion92…181 mm
Max. face width of meeting stile83 mm
Min.-max. face width of meeting stile83…83 mm
Min.-max. glass/panel thickness16…52 mm
Area of applicationExternal use, Residential projects, Residential projects, Commercial projects
Shear bondYes
Concealed fittings systemYes
Surface finishesPowder, Anodised, Paint
Glass compositionTriple glazing
Operating forcesClass 1
Barrier-free operating forces in accordance with DIN 18040Yes
Opening type: TipTronic, inward-openingTurn/tilt, Side-hung, Bottom-hung, Toplight
Opening type: manual, inward-openingTurn/tilt, Side-hung, Bottom-hung, Double-vent turn/tilt / side-hung, Double-vent side-hung / side-hung, Tilt/slide, Toplight, Tilt-before-turn
Opening angle180 °
Mechanical strengthClass 4
Proof of durabilityClass 3
Corrosion protection class for fittingsClass 5
Uw value of window (≥)0.87 W/(m²·K)
Ug value of glass (≤)0.3 W/(m²·K)
Drainage levels3
Security glazingYes
Suitable for safety barrier loadingYes
Certificatescradle2cradle SILVER


[E] Schüco AWS 75 BS HI+

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Order manual 1-3 – Window fittings

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[Gc] Schüco AWS 75 BS.HI+

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Fabrication manual 1-3 – Window fittings

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Schüco Aluminium window and door systems

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Mechanical security with Schüco aluminium systems

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Specification texts

Schüco AWS 75 BS.HI+, highly thermally insulated aluminium block window system
With 75 mm basic depth.

Design features:
Integrated system, the vent frames are positioned behind the rebate of the outer frames.
The clear dimension of the opening vents is identical to that of the fixed glazing and/or infill.
Face-fitted vent frame on the room side rebated by 10 mm from the frame edge.
Thermally insulated insulating bars with three hollow chambers form the rebate for the co-extruded, double hollow chamber centre gasket fitted with a foam core.
For improved separation of heat transfer, this must also be designed with a fin.
The joints of the external glazing retention beads are covered by the glazing gasket, which is designed as a vulcanised gasket frame.
The glazing gaskets with fins on the room side also seal off the glazing rebates.

Profile basic depths:
Outer frame, mullion, transom 75 mm
Vent frame (face-fitted window) 80 mm

Profile face widths:
Outer frame, bottom 91.5 mm
Outer frame 66.5 mm
Insert outer frame 50 mm
Mullion 107 mm
Transom 91.5 mm
Double-vent profile 83 mm


CAD data

Planning principles

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System drawings

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Rule details

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Test documents

Document type Test type Result Classification Document no. / Download
Prüfzeugnis Dauerlaufprüfung
Klasse 1
Klasse 3
Klasse 1
View onlineDownload (pdf, 163.3 KB)
Prüfzeugnis Luftdurchlässigkeit
Q100(L)=0,13 100(F)=0,38
+/- 3000
Klasse 4
Klasse E750
Klasse C5/B5
View onlineDownload (pdf, 143.0 KB)
Prüfzeugnis Luftdurchlässigkeit
Q100(L)=0,40 Q100(F)=0,57
Klasse 4
Klasse E1050
Klasse C5/B5
View onlineDownload (pdf, 908.6 KB)
Prüfzeugnis Wärmedurchgangskoeffizient 1,4 – 1,8 View onlineDownload (pdf, 357.7 KB)
Prüfzeugnis Dauerlaufprüfung
20.000 Klasse 3
Klasse 1
View onlineDownload (pdf, 603.0 KB)
Gutachterliche Stellungnahme Einbruchhemmung RC 1N / RC 2 / RC 2N View onlineDownload (pdf, 226.1 KB)
Gutachterliche Stellungnahme Einbruchhemmung RC 1N / RC 2 / RC 2N View onlineDownload (pdf, 227.4 KB)
Gutachterliche Stellungnahme Einbruchhemmung RC 3 View onlineDownload (pdf, 117.7 KB)
Gutachterliche Stellungnahme Einbruchhemmung RC 3 View onlineDownload (pdf, 219.6 KB)
Gutachterliche Stellungnahme Einbruchhemmung
TipTronic SimplySmart

TipTrpnic SimplySmart

RC2 / RC2 N
RC2 / RC2 N
RC 2 / RC 2 N
View onlineDownload (pdf, 195.3 KB)