Sky-Frame Arc

The sliding elements of Sky-Frame Arc are used to create curved glass fronts, thereby adding organic contours to the home environment. The radiused glass units offer smooth running performance and can be equipped with an automatic drive on request. These curved windows meets all Sky-Frame standards and, as a streamline architectural feature, opens up a wealth of additional design options.


Characteristics   Sky-Frame 2 Sky-Frame 3
Glass type   Double-glazed insulating glass Triple-glazed insulating glass
Glass coating   Thermal insulation and UV protection Thermal insulation and UV protection
Uw calculation (width x height 4.6 x 3 m) in accordance with the standard   SIA 331 EN 10077 SIA 331 EN 10077
Thermal insulation value (glass Ug = 1.0) Uw = 1.2 W/m2K 1.3 W/m2K    
Thermal insulation value (glass Ug = 0.5) Uw=     0.7 W/m2K 0.8 W/m2K
Sound reduction up to Rw, P 37 dB   44 dB  
Sliding elements (max. width x height)   2.3 x 3.1 m 2.3 x 3.1 m
Radius   5 –10 m
Variations on request
5 –10 m
Variations on request

Explore a world of opportunities with Sky-Frame Arc
Find out about all the options and features.

  • Original Visible transition

    Visible transition

    Original A feeling of vast, wide-open space, even when the windows are shut: the windows are framelessly transparent from the ceiling to the floor, which is made possible by the track system that is fully concealed in the floor. Sky-Frame Original ensures that heat and cold remain outside.

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  • Sky-Frame 1 Single glazing

    Single glazing

    Sky-Frame 1 The single-glazed Sky-Frame 1 system (12 mm) caters for applications without thermal insula-tion requirements.

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  • Sky-Frame 2 Double-glazed insulating glass

    Double-glazed insulating glass

    Sky-Frame 2 The double-glazed Sky-Frame 2 assemblies The double-glazed Sky-Frame 2 assemblies (30 mm) meet high sound and thermal insulation requirements.

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  • Sky-Frame 3 Triple-glazed insulating glass

    Triple-glazed insulating glass

    Sky-Frame 3 The triple-glazed Sky-Frame 3 technology (54 mm) further enhances the thermal insula-tion performance to meet the most stringent standards.

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  • Fly Insect screen

    Insect screen

    Fly Sky-Frame Fly allows residents to enjoy sum mer weather without being plagued by insects. When not in use, the pleated screen fully re tracts out of sight into the frame.

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  • Drive Electric drive

    Electric drive

    Drive The electric drive allows straightforward and virtually noiseless operation of the sliding elements at the press of a button.

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  • Guard Increased anti-burglary protection

    Increased anti-burglary protection

    Guard The Sky-Frame sliding window system is burglar-resistant and can, where required, be fitted with laminated safety glass and additional security hardware concealed in the frame. Alarm sensors can also be integrated to monitor the windows.

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  • Pocket Hidden sliding door

    Hidden sliding door

    Pocket When Sky-Frame Pocket is opened, the window elements slide into the wall so that living spaces are completely open, highlighting the magnificence of the interior architecture.

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  • Inline Flush-fitted glass panels


    Flush-fitted glass panels

    Inline These elegant beams with a visible width of just 30 mm make it possible to create spectacular flush-fitted glass panels by connecting frameless fixed glass panels with sliding windows.

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  • Gun Bulletproof version

    Bulletproof version

    Gun Security means quality of life. That is why Sky-Frame Gun features insulated security glass, reinforced frames and vertical profiles to protect against gunfire.

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  • Sun Shading solution

    Shading solution

    Sun The Sun solar shading assembly offers protection against heat and strong sunshine. The flat aluminium slats are carried on filigree guide cords that are easy to remove and fix back in place whenever necessary.

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  • Color Customisation


    Color Create your own Sky-Frame sliding doors: choose the profile colour and we will bring your vision to life.

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  • Hurricane


    Hurricane Sky-Frame’s hurricane-tested, frameless sliding windows are some of the largest on the international market. They comply with the criteria for the authoritative standard of the industry – High Velocity Hurricane Zone (HVHZ) according to the Florida Building Code.

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An overview of the product portfolio

Sophisticated spatial concepts and individual aspirations require tailor-made solutions. Sky-Frame products set no limit on architectural dreams.