Intelligent Design Solutions
Aluminium bifold doors - SF55e
For more than thirty years SUNFLEX has lead the way in the design and manufacture of industry-leading door systems. The SF55e aluminium bi-fold doors are the new entry level addition to the range, providing a top of the range specification for a mid-range price whilst sharing almost all of its unique key features, innovations and design characteristics of the award-winning SF55 system.
The advanced German design and engineering, slim sight lines and contemporary square edged profiles ensure that the SUNFLEX bifold door range are not only the most advanced systems available on the market, but that they look and perform perfectly time after time, year after year.
SF55e
The SUNFLEX SF55e is an innovative version of the award-winning SF55 aluminium bifold door.
Manufactured from the same square edged aluminium profile as the SF55, measuring just 55mm from front to back.
Designed with alternate gasket and hinges compared to SF55 system
Accommodates a glazing unit of 28mm, 30mm or 36mm.
Maximise your opening with panel widths up to 1200mm and 3000mm maximum panel height without the need for a sliding post.
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.
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.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Choice of 3 thresholds
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.
Aluminium 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.
SF55
The SF55 slimline frame is an award winning door – winning the Build It magazine award for ‘Best Glazed Door’.
55mm front to back creating a wider opening than other bifold doors.
Maximise your opening with the incredibly slim and neatest stack of bifold doors on the market.
This system accommodates a glazing unit of 28mm, 30mm or 36mm.
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.
Choice of 3 thresholds
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. Please see downloads for the section details.
SF75
Advanced thermal efficiency with a 44mm multi-chambered thermal break keeping heat inside your room.
Save money on heating bills and make your room feel warmer maintaining the incredibly slim 115mm sight line.
Nobody else offers a bifold door with this combination of weather protection, thermal efficiency and slim sight lines.
This system accommodates a glazing unit of 28mm, 30mm or 48mm. Even with triple glazing, integrated Venetian blinds within the glass are still an option.
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.
Choice of 2 thresholds
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.
Timber bifold doors - SF75h
The SUNFLEX SF75h is a timber bifolding door unlike any other. Designed and manufactured in Germany it offers sightlines of only 122mm, which is slimmer than many other manufacturers’ aluminium systems. The unique continuous twin seal gasket design, between the panels, provides additional finger protection as well as an effective seal. Unlike most other timber bifold doors the SF75h has certified weather test results giving you complete peace of mind.
Timber clad aluminium bifold doors - SF55c & SF75c
Achieve the best of both worlds with our slimline aluminium doors that have internal timber cladding. Enjoy the warmth and natural beauty of the internal timber whilst benefiting from the maintenance free aluminium externally. Designed and engineered by SUNFLEX in Germany these systems provide the slimmest composite folding doors on the market - our design is an aluminium door with internal timber cladding rather than the old style of a timber door with external aluminium cladding. Slim sight lines, a choice of three internal timber styles, symmetrical discreet hinges and handles in-line with the door frame help make these the best looking composite folding doors available.
Choose between the SF55c double glazed and the SF75c triple glazed.
SF55c
Ideal to achieve wider panels whilst exceeding building regulations for thermal efficiency without having to invest in triple glazing.
Double glazed 1.0W/m²K centre pane U-Value = Overall frame and glass 1.6W/m²K.
This system accommodates a glazing unit of 28mm or 30mm.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Maximise your opening with panel widths up to 1,100mm and 3,500mm 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. This enables us to provide larger panels and greater openings than anybody else. This is introduced for inward opening sets, heights over 2,700mm, panel weights over 75kg and seven panels or more folding in one direction.
Choice of 3 thresholds
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.
SF75c
The ultimate in thermal efficiency with a massive 44mm multi-chambered thermal break keeping heat inside your room. Not only saving you money on heating bills but making your room feel warmer whilst maintaining the incredibly slim 118mm sight-line. Nobody else offers a folding door this thermally efficient with such a slim sight-line.
Triple glazed 0.5W/m²K centre pane U-Value = Overall frame and glass 0.9W/m²K.
This system accommodates a glazing unit of 48mm.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Maximise your opening with panel widths up to 1,000mm, maximum panel height for narrower panels 3,000mm. A sliding post can be introduced at the running carriage position to offer greater balance to the doors in extreme situations. This enables us to provide larger panels and greater openings than anybody else. This is introduced for inward opening sets, heights over 2,700mm, panel weights over 75kg and seven panels or more folding in one direction.
Choice of 2 thresholds
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.