SF 55

thermally insulated aluminium system

Despite its very low construction depth, the SF 55 aluminium system has comparatively unique thermal insulation properties and is therefore particularly suitable for closing off heated living spaces.

SF 55c

thermally insulated aluminium system with wood cladding

Like the SF 50c system, the SF 55c aluminium system is fitted with a real wood cladding on the inside, but with the added advantage of a thermal insulation which is particularly persuasive during the cold months.

Technical Details (Example SF 55)

Security
The panels are locked and unlocked by a user-friendly single-handed manipulation of robust flat handles. For additional safety, different types of locks are available.

Mushroom head lock
For optimal tightness and burglary resistance, the doorway panel (turn panel) is laterally connected to the frame or the adjacent panel through an additional mushroom head locking.

Safety function panel catcher
In any opening position of the folding sliding system an open turn panel may be safely locked to the adjacent panel by means of safety function panel catchers and be carried along in a controlled way.

Burglar resistance
By means of a safety screw all external hinges are additionally secured against knocking out of the hinge bolts.

Proper handle series
Handles matching the profile design guarantee a harmonized overall picture of the folding system in closed situation and a small panel package when being open.

Twin-Lock mechanism
To guarantee additional safety, the optionally available twin-lock mechanism offers a maximum of security.

Height compensation
The height of the installed folding system may be easily adjusted by a few hand grips, only – this is important in case of eventual structure sagging.

Assembly
The assembly shoes allow a fast and trouble-free assembly of the frame and a fine adjustment of the vertical frame profiles.

Profile system

  • Glass folding door with thermally insulated aluminum profiles
  • Bottom-loaded construction
  • Rear-ventilated wooden cladding inside (SF55c) (optional)
  • The construction depth of the profiles is 55 mm (SF50c = 75 mm)
  • UW up to 1,5 W/m2k (with glazing Ug = 0,7 W/m2k)
  • Air permeability class 4 according to EN 12207
  • Rain tightness class E900 according to EN 12208
  • Resistance to wind load class B4 according to EN 12210
  • Airborne sound insulation value Rw = 36 dB according to DIN EN ISO 140-3
  • Burglar-resistance up to resistance class 2 (WK2)
  • Option of flush or weathered bottom track
  • The flush bottom track is particularly suitable for use in "Barrier-free dwellings" according to DIN 18 025
  • Panel open to the inside or outside
  • Opening of panels by sliding to one side or to both sides
  • Flush running and guide tracks
  • Height variations and expansions may be compensated

Fittings

  • All fittings are concealed within the profiles
  • Low-maintenance, non-corroding and failsafe hardware components
  • Locking of panels in top and bottom track and/or via mushroom head-lock engaging into the frame or adjacent panel
  • Locking and unlocking of panels via flat handles with locking device for burglar resistance
  • Optionally fitted with different lock types
  • Hinges are secured against knocking-out of the pivot pins (burglar resistance)
  • An open turn panel may be securely fixed to the adjacent panel by panel catchers

Running assembly

  • Easy adjustment due to a height-adjustable carriage system
  • The running assemblies are located above the water drainage area
  • Low-noise, wear-, heat- and cold-resistant rollers

Sealing and ventilation

  • Using EPDM gaskets at two levels guarantees rain- and wind-proofness

Glazing

  • A glazing configuration between 8 mm to 36 mm is possible
  • Subsequent replacement of panes without difficulty