Home - Doors - Bi-folding - Sunflex bifold doors – SF55 & SF75
SUNFLEX aluminium bifold doors lead the way in innovation and design, setting the standards for other companies to follow. Rather than emphasising on only one or two elements that make the SUNFLEX doors stand out, there are countless features that make the SF55 and SF75 head and shoulders above the rest. German design and manufacture, slim sight lines, contemporary, square edged profiles throughout and colour matched furniture in line with the frame make SUNFLEX doors the best looking on the market. Choose between our award-winning SF55 and SF75 – the only German made system with a BSI Kitemark certificate – the perfect combination.
Aluminium is an ideal material as it’s light, strong and stable with slim profile sections to minimise the visible framework and maximise the glass area. Gain reassurance in the most exposed locations with this virtually maintenance free material.
Integrated ventilation option with a full height tilt and turn window within the bifold doors. This enables generous ventilation without having to open the doors and also offers another exit point at the opposite end to where the doors open.
Double glazed 1.0W/m2K centre pane U-Value = Overall frame and glass 1.6W/m2K.
Triple glazed 0.7W/m2K centre pane U-Value = Overall frame and glass 1.3W/m2K.
Maximise your opening with panel widths up to 1200mm and 3500mm maximum panel height for narrower panels. A sliding post can be introduced at the running carriage position to offer greater balance to the doors in extreme situations.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Weathered track with double rebates offering peace of mind even in the most exposed of locations. One of the only bifold doors that can offer a double rebates on the bottom track which is why we achieve enviable weather test results ensuring that the outside is kept outside. On outward opening doors the internal finished floor can be level with the top of the track and then the step down to the outside can be as small as 3cm.
Low level track with single rebate low level Doc M compliant track recessed in to the floor with a single rebate. The floor on the inside and outside can be at the same level with the track in the middle sloping up only 14mm. This provides a single rebate for the doors to close tight against which is more weather tight than the flush track.
Non weathered flush track, Doc M compliant track recessed in to the floor with no rebates. Using a twin brush pile and a nylon strip for a virtually seamless connection between inside and outside. Whilst this is a very subtle detail it is recommended for a sheltered area only as there is not a continuous seal and reduces the weather rating with no guarantee against wind and water ingress which is a compromise for this contemporary look. A slope away or drainage channel is then recommended on the outside to prevent any water ever pooling up against this track.
A sill section with varying projection options can be used below any of these tracks.
Double glazed 1.0W/m2K centre pane U-Value = Overall frame and glass 1.4W/m2K.
Triple glazed 0.5W/m2K centre pane U-Value = Overall frame and glass 0.9W/m2K.
Maximise your opening with panel widths up to 1100mm, maximum panel height for narrower panels 3500mm. A sliding post can be introduced at the running carriage position to offer greater balance to the doors in extreme situations.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Weathered track with double rebates offering peace of mind even in the most exposed locations. One of the only bifold doors that can offer a double rebate on the bottom track which is why we achieve enviable weather test results ensuring that the outside is kept outside. On outward opening doors the internal finished floor can be level with the top of the track and then the step down to the outside can be as small as 3cm.
Low level track with single rebate low level Doc M compliant track recessed in to the floor with a single rebate. The floor on the inside and outside can be at the same level with the track in the middle sloping up only 14mm. This provides a single rebate for the doors to close tight against which is more weather tight than the flush track.
A sill section with varying projection options can be used below any of these tracks.
Burglar-resistant fittings
Assembly shoes allow a fast assembly and precise adjustment of the vertical frame profiles
PAS 24:2012 certified security standard
Height adjustment of the running mechanisms possible
Optional twin-lock-mechanism
Panel catcher for additional security to fix the pass door to the adjacent panel
Mushroom-head lock for optimal tightness and increased security
Options from Sunflex handle series
Different kinds of locks available
Burglar-resistant fittings
Assembly shoes allow a fast assembly and precise adjustment of the vertical frame profiles
PAS 24:2012 certified security standard
Height adjustment of the running mechanisms possible
Optional twin-lock-mechanism
Panel catcher for additional security to fix the pass door to the adjacent panel
Mushroom-head lock for optimal tightness and increased security
Options from Sunflex handle series
Different kinds of locks available
Sunflex Colour Range
Aluminium RAL 9006
Anthracite Grey RAL 7016
Grey Aluminium RAL 9007
White RAL 9016
Silver Anodised
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