Glas-Faltwand Highline aus Aluminium geöffnet
Highline bi-folding door
Slender sight profiles, patented technology
The system with a building depth of 84 mm and a minimum sight line of 99 mm in the panel joint – and an extra-wide opening, of course.

Incredibly slim sight lines, patented technology

With a building depth of 84 mm, maximum panel width of 1.1 m and maximum height of 3.5 m, the 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. Its shape helps to keep profiles extremely slim – even when using large and heavy panels. It also houses the locking mechanism and fittings, and guarantees perfect insulation.

Technology at a glance
Burglar resistance
Water tightness
Up to 9A
Widerstandsfähigkeit bei Windlast
Widerstandsfähigkeit bei Windlast
Thermal transmission coefficient
Uw > 0.8 W/m²K
Air permeability
Sound reduction index
R'w up to 45 dB
Baie accordéon en verre anti-effraction
Baie accordéon en verre anti-effraction


The bi-folding door Highline from Solarlux is the first bi-folding door in the world to be certified to European security standard RC 3. With RC 3 certification, the Highline bi-folding door is more secure than any other on the market.

Opening options

System details designed to impress

Durch Klick auf die einzelnen Punkten erfahren Sie mehr über die verschiedenen Details.

Technical details & downloads

Sophisticated technology demo video

Solarlux bi-folding doors are notable primarily for their sophisticated technology and the wide range of technical details included in their design, many of which are patented. Our demonstration videos illustrate impressive features such as the TwinX concealed panel centring system, the carriage, the locking mechanism and the burglar resistance system.  

Our materials

The Solarlux world of colours

When you choose a Solarlux bi-folding door, you opt for individuality. Solarlux standard colour options, which include around 30 RAL colours, offer all the colours of the rainbow in matt and gloss finishes, at no extra cost. This allows every bi-folding door to match its building’s interior and  exterior design. We use our own in-house coating plant – one of the most modern in Europe – for top surface quality. 

RAL 1015
RAL 3011
RAL 5003
RAL 5008
RAL 5014
RAL 6005
RAL 6009
RAL 7004
RAL 7006
RAL 7015
RAL 7016
RAL 7021
RAL 7024
RAL 7035
RAL 7038
RAL 7039
RAL 7040
RAL 8017
RAL 8019
RAL 8022
RAL 8077
RAL 9001
RAL 9003
RAL 9004
RAL 9005
RAL 9006
RAL 9007
RAL 9010
RAL 9011
RAL 9016