SF55 Thermally broken aluminium & SF55c with timber clad
The SUNFLEX SF55 has been developed to shape the future of the bi folding patio doors market. Not only does it provide a compact profile depth of only 55mm, in addition to narrower sightlines maximising glass area. It boasts of an unrivalled 24mm patented shaped polyamide thermal break, making the SF55 the slimmest, most thermally efficient, secure and reliable bi folding system available.
The Sunflex SF55c represents the very best of both worlds with the thermally broken aluminium to the outside to match in with the remainder of your windows and timber clad (composite doors) to match the look of your room. You no longer need to compromise - enjoy the benefits of the low-maintenance and thermal efficiency of aluminium and the natural beauty and warmth of wood in aluminium bi-fold doors.
The advanced technology used ensures that not only does it exceed current building regulations but any other likely stringent changes in the future.
Special features
- Compliant with Building Regulations and severe weather rated
- Revolutionary slim profile with unrivalled thermal properties and discreet hinges
- Full range of finishes, track options and opening variations
- Triple gaskets which remain continuous behind hinges
- Concealed ball-bearing running carriages, with simple height adjustment
- Lightweight construction and simple assembly
- High security, low maintenance, and fully guaranteed
Versatility in design
The system may be folded to the left or the right, open to the inside or outside, and can have panels all folding the same way or split with a number folding to each side.




















