Incredibly Slim Sight Lines, Patented Technology
The aluminium Solarlux Highline bi-folding door expands on the extensive capabilities of the Ecoline door with increased panel widths of up to 1,100mm and heights of up to 3,500mm. Featuring a depth of 84mm, the Highline can be specified with double or triple glazing. Like the Ecoline, the Highline features unbroken, slim sight line of 99 mm at the panel joint even when using large and heavy panels.
Technology at a glance
Burglar Resistance
RC2/RC2N
Resistance
B4
Air Permeability
3
Water Tightness
Up to 9A
Thermal Transmission Coefficient
Uw > 0.8 W/m²K
Sound Reduction Index
R’w up to 45 dB
System Description
Highline Bi-folding Door Profile System
- Modular aluminium profile system with high-performance thermal insulation and choice of two building depths: 67 mm for Ecoline or 84 mm for Highline
- Bottom-running; minimal load support required in case of falls
- Edged profiling
- Minimum sight line of 99 mm in the panel profile joint
- Single-piece, multi functional, fibreglass-reinforced polyamide bionicTURTLE® break profile
- Loose shear bond built into thermal break to compensate for thermal loads
- Mitred panels connected by corner pieces that are glued and pressed together on the inside to create a sturdy joint
- Controlled drainage
- Built-in running tracks and guide rails
- Separate levels for runners and locks
- Floor track (accessible and suitable for living spaces) available
- Built-in, concealed cable routing
Bi-folding Door Sealing System
- The seal encompasses two all round sealing levels with constant gap sizes and even seal pressure between the panels
- Sealing levels not interrupted by fittings
- Sheathed foam seals with optimum sliding properties
- With optional convection chamber interruption seals for improved thermal transmittance
- Up to three sealing levels available
Highline Bi-folding Door Design Variants
- Panels fold either inwards or outwards, to either left or right
- Left and right sliding panel pairs also available
- Floor track designs without rebates in compliance with German standard DIN 18040 on “Accessible construction”
- Floor tracks available as minimal floor tracks without height offset
- RC2/RC2N version available as an option
- Tilting or turn-and-tilt panel can be built into the frame side
- panel of a panel pair with concealed fittings
- Modular system allows folding, tilting, turn and tilt and fixed elements to be combined in a single frame with an uninterrupted floor track thanks to integral profile
- Bi-folding door available on balustrade or with top light in a frame
Fittings
- No protruding running tracks or guide rails
- Fittings with one hand operation in profiles
- With optional built in TwinX concealed panel centring mechanism for high wind loads
- System hinges also suitable for heavy panel weights
- System adjustment mechanism built into sub-frame rebate, outside the sealing level
- The specially shaped stainless steel running track with tapered track roller allows the use of unguided carriages
- Stainless steel ball bearing runner mechanism: stainless steel track rollers and stainless steel bearing surfaces for quiet running and very long service life
- Easy-running, low wear carriage fitted with double row deep-groove ball bearings and built-in anti-prying guard
- Sliding lock or optional lock-in-place panel for controlled ventilation
- High-quality, stainless steel Solarlux designer handles
- Lock-in-place, one hand operation thanks to special gears with stroke of 24 mm
- Passdoor available with latch-key-activated, multi-point lock and profile cylinder
- Secure hinge pins
- Secure cleaning pin with convenient unlocking mechanism and misuse prevention system to allow cleaning of the outsides of the panels on inwards-opening bi-folding door elements
- Thanks to its defined locking points, this cleaning pin can be used for both paired and unpaired bi-folding doors
- Lock monitoring system with reed contacts and concealed cable routing
- Patented “Comfort Snap” panel catch
- Optional load-transferring plates with centring grooves and sealing cushions for mounting the sub-frame profiles and floor track
- Additional mounting screw covers in frame rebate
Environment
- Sustainable manufacturing
- Certified disposal in accordance with DIN EN ISO 14001:2009
Operations
- In-house production control
- Tested in accordance with DIN EN 1090, design class EXC 1 & EXC 2
- Certified in accordance with DIN ISO 9001
Find out more about the Highline bi-folding door on the Solarlux website here.



Solarlux World Of Colours
Solarlux products are available in any RAL colour. The stand colour palette includes around 30 RAL colours in both matt and gloss finishes at no extra cost.
Solarlux Bi-folding Door Range
What Our Clients Say
See All TestimonialsMaggi & Pat, Guildford
It has been a pleasure working with you and your team. Thank you for your assistance and patience throughout what was a less than straightforward installation.
Miss A Knight
Two engineers, Fraser and Thomas, came out to my property to deal with a tricky VELFAC door issue after recent construction work on my roof. They worked tirelessly all morning to solve the issues. Now my doors work perfectly. Great professional service. Thank you guys!
Paul, Wiltshire
Westcott installed Velfac aluminium windows, bi-folds and external doors right across our house refurb. They were friendly, responsive and knowledgeable – and explained things in terms we could easily understand. We have no hesitation in recommending Westcott.