Sky-Frame Frameless Sliding Doors

Sky-Frame Frameless Sliding Doors

The name “Classic” not only evokes the timeless appeal of the rectilinear window assembly, but also highlights its historical significance as the first ever Sky-Frame system. The sliding windows comprise insulating glass units with perimeter aluminium or glass-fibre-reinforced plastic (GRP) sections. Mounted in aluminium frames that are fitted flush with floor and ceiling, the sliding units offer minimum rolling resistance when operated. The system drainage for the flush assembly is via recessed channel or is installed below the raised outdoor floor covering.


Single glazing


Double-glazed insulating glass


Triple-glazed insulating glass



Insect Screen


Electric Drive

Bulletproof version


Bulletproof Version

Increased Anti Burglary Protection


Increased Anti
Burglary Protection

Flush-Fitted Glass Panels


Flush-Fitted Glass Panels

Hidden Sliding Door


Hidden Sliding Door

Shading Solution


Shading Solution





Swiss Quality

  • Swiss design and engineering
  • Central production and development in Frauenfeld
  • In-house powder coating certified by Qualicoat
  • Flexibility thanks to special rolling process
  • Standardized quality check
  • Owner-operated family business
  • Sky-Frame on the market since 2002

Purist Design

  • Clear lines and shapes
  • Fully integrated fittings invisible from the exterior, also available with push-button lock or minimalistic lock cylinder
  • Floor-to-ceiling glass with minimal black edging of approximately 7 mm at the top and bottom
  • Multipoint locking system with minimal vertical profile thickness of 20, 28, 30, 34 mm depending on wind load and form of use

Controlled Drainage

  • SIA 271 compliant; safety with an overflow height of 38 mm for Sky-Frame 2 and 42 mm for Sky-Frame 3
  • Fully integrated, controlled and completely watertight drainage plane
  • Connection space of around 50 mm to outer edge of frame
  • Insulation below frame guaranteed to stay dry
  • Optional Sky-Frame gutter system available in 30 or 80 mm profile

Easy to Slide

  • Compact, invisible trolleys
  • Weather resistant marine grade rollers located underneath operable panels
  • Self-cleaning trolleys due to shaped felt cap
  • Straightforward and rapid cleaning of sliding tracks using a vacuum cleaner
  • Consistent load on wheels/trolleys


  • System-integrated night time ventilation
  • Insect screen Fly integrated in window frame, can be pulled out up to 1m
  • Solar shading runs on retractable cables for unobstructed openings
  • System-integrated solutions for pocket door
  • Security sensors (position monitoring/lock monitoring/glass breakage detector)
  • Triple locking system
  • Increased burglary protection RC2
  • Bullet-proof system with Gun implementation

Standards and Safety

  • Sky-Frame glass norm beyond glass standard
  • Glass quality check at Sky-Frame headquarters
  • Heat-soaked, toughened safety glass used as standard
  • Minimal risk of thermal shock
  • Personal protection thanks to toughened safety glass
  • Anti-fall protection with laminated glass if required
  • Clear glass available

Maintenance of Value and Durability

  • Perfect, durable anchoring and alignment of floor profile thanks to precise Sky-Frame levelling system
  • System includes the option to readjust the header profile up to 10mm in the event of ceiling settlement
  • Vertical profiles permanently tight due to height-adjustable trolleys
  • Straight forward and rapid replacement of trolleys


  • Doors can be opened/closed and/or locked/unlocked manually at any time, even in the event of a power failure
  • Resistance-free motor in the event of manual use
  • Up to six-part (three elements left, three elements right) telescopic drive with controllable speed for fine-tuning in the case of wider openings
  • Invisible service opening in support profile

Living Comfort

  • Three-dimensional insulation of profiles
  • Closed system; no connection to underfloor heating required
  • Thermaal insulation of all profiles
  • Reduced cold-air-drop with Sky-Frame 3
  • Minergie and Minergie-P options available




Sky-Frame understands the needs of its customers and can deliver a premium sliding window solution for any living situation – whether for urban life in a city apartment or for carefree relaxation in a rural holiday home. Sky-Frame and its experienced distribution partners offer clients and architects professional advice and support – right from the outset and through to completion of tailored spatial concepts.

Aesthetic Appeal

Aesthetic Appeal

With ceiling-height window fronts, organic curves or sloping glass units, Sky-Frame lays the foundation for customized spatial concepts and outstanding architecture. Inspired by the Bauhaus vision of “free-flowing space”, the flush-threshold sliding glass doors open up the home interior. Indoor and outdoor space merges to create a unified living environment. Wall pockets allow the sliding windows to be fully retracted out of sight.



The Sky-Frame system includes a range of features for enhanced comfort. The Sun solar shading assembly offers protection against strong sunshine. The Fly insect screen allows the insect-free enjoyment of warm summer days and balmy evenings. Automatic drives permit soundless and, if required, remote-controlled operation of the window units.



As a testament to Sky-Frame’s engineering prowess, the complex technology – though fully concealed – is exceedingly simple to operate. Yet, as in all areas of human endeavour, improvements and refinements are always possible and, for Sky-Frame, this is what drives the unceasing process of product innovation.

Sky-Frame Fly Insect Screen

Sky-Frame Fly makes it possible to enjoy summer weather without being plagued by insects. It is a minimalistic way to keep insects at bay. When not in use, the frameless pleated screen fully retracts out of sight into the frame. The combination of tear-resistant Vectran fiber tension cords and an integral system section guarantee maximum stability and weather resistance. Fly extends up to 1m wide.

Horizontal section - Insect screen in closed position

Horizontal section - Insect screen in opened position

Sky-Frame Electric Drive

Sky-Frame Drive’s electric drive facilitates straightforward and virtually noiseless operation of the sliding panels at the press of a button. The drive is concealed in the ceiling section and allows the window panels to move automatically.

Opening options

Sky-Frame Gun

Security means quality of life. With special insulated security glass (2-IG with bullet resistant glass), reinforced frames, vertical profiles and defined building joints, Sky-Frame 3 Gun ensures optimal protection from gunfire.

The Swiss Federal Office for Defence Procurement armasuisse has rated Sky-Frame 3 Gun as FB4, NS (.44 Magnum, no spall).

Bullet resistance - Reinforced profiles with bulletproof glass

Corner detail

Sky-Frame Guard

Sky-Frame Guard offers outstanding burglar resistance thanks to an adhesive bond between the insulating glass assembly and the GRP sections, as well as a multi-point locking system. Various additional components are available to meet further security requirements.

Electronic components:
– Position monitoring (leaf)
– Deadbolt monitoring (lock)
– Glass breakage sensor (alarm loop)
These three security parameters can be electronically monitored by alarm sensors concealed in the unit, and the status information can be transmitted to a burglar alarm system.

Mechanical components:
The Sky-Frame 2 and Sky-Frame 3 technologies have been inspected by ift Rosenheim and comply with the following anti-burglary protection class:
RC2 (EN 1628, 1629, 1630/EN1627)

Sky-Frame Inline

The Sky-Frame system is supplemented by elegant filigree posts, which has a minimal visible width of just 30 mm. Frameless fixed glass panels can therefore be combined with sliding windows over large areas, forming a flush, continuous glass membrane.

Sky-Frame 2 (Double glazing)

Sky-Frame 3 (Filigree post combined with sliding panel)

Sky-Frame Pocket

With the Sky-Frame Pocket solution, rooms can be completely opened up without any visible glass leaves. The sliding panels are recessed and hidden away from sight, highlighting the magnificence of the interior architecture.

Horizontal section

Opening options

Sky-Frame Sun

The Sun venetian blind system with its flat, 80mm wide aluminium slats offers the perfect solar shading solution for the elegant Sky-Frame sliding windows. Slats that measure up to 3 m width and with a maximum height of 4 m are suspended on plastic-sheathed guide cords. The Sun box is recessed into the floor and the winding mechanism in the blind box facilitates swift dismantling of the guide cords to create an unobstructed opening as well as their subsequent reinstallation.

Horizontal section

Vertical section

Sky-Frame Color

Create your own Sky-Frame sliding windows: choose the profile colour and we will bring your vision to life. The sliding window system you choose will be assembled by highly experience glaziers, metalworkers and coating specialists who work with real diligence and have a passion for what they do.

Sky-Frame offers the window profiles with colourless anodisation. Alternatively, an individual colour from the RAL, IGP or DB colour systems can be defined for the powder coating or one of six anodized colours can be selected.

Colour options

Site Procedure 1: Sub-frame Stage

Installation of Sub-frame
– Sub-frame is cut into size on site
– Corner joint is used for ensuring the perpendicularity of sub-frame
– Galvanized strip and Hilti products are used to fix the sub-frame to the wall structure
Advantages of Sub-frame system
– Generally has better water tightness performance
– Can be used for precast or cast in-situ wall systems which do not require plastering
– Allow greater flexibility in the sequencing of works of other trades; the sub-frame is installed first so that the wet trades around the window can be completed before subsequent installation of the main frame
– The main frame are installed after completion of all wet trades around the windows and hence, are subjected to lower risk of physical damages