Incredibly slim sight lines, patented technology
With a building depth of 84 mm, maximum panel width of 1.1 metres and maximum height of 3.5 meters, the aluminium Highline bi-folding door system boasts an unbroken, slim sight line of 99 mm at the panel joint. This is thanks to the heart of the bi-folding door: the bionicTURTLE®, a multi-functional break profile that combines a range of technical details. This innovation keeps the profiles extremely slim – even when using large and heavy panels, it also houses the locking mechanism and guarantees perfect insulation.