An infinite view that invites inspiring journeys and light that uplifts the senses. The system allows you to enjoy the full experience of wide openings, where space and brightness merge seamlessly. Challenges such as thermal insulation, security, and watertightness are effortlessly met through advanced engineering and design precision.
SL
60
THE DESIGN
When creating an insulated folding door, we aimed to achieve the perfect balance — meeting the demands of extra-large openings through a wide range of solutions that blend refined design with exceptional functional quality.
The result is a robust and elegant system built to operate flawlessly for years to com
ATTENTION TO DETAIL
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Unobstructed Transit
Designed with accessibility in mind, the low-threshold configuration — with a visible height of only 0 2/16 in and 0 4/16 in — ensures smooth, barrier-free movement for everyone, including children and individuals with physical challenges. Move freely.
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Expansive Openings
Create impressive openings up to 137 13/16 in. Advanced reinforcements guarantee outstanding structural stability, even under extreme weather conditions.
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Ghost Glazing Gaskets
Discreet by design, the ghost glazing gaskets minimize visible lines, offering a seamless, elegant appearance without compromising functionality.
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Concealed Water Drainage System
A hidden drainage solution keeps the threshold area clean and refined while maintaining full protection against water infiltration — enhancing both performance and aesthetics.
Extra features
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Heavy-Duty Roller Hinges
Engineered for strength and durability, the high-performance roller hinges ensure stability, safety, and effortless movement even across the widest openings. Their robust design prevents sash sagging, unwanted lifting, and potential intrusions — guaranteeing reliable performance over time.
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Minimal Handle and Pull Handle
Aesthetics meet function in the specially designed minimal handles and intermediate pull options, available with or without integrated hinges, for effortless locking and smooth operation in any opening direction.
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Single or Double Door Handle
Elegant and refined, these handles elevate every architectural concept. Their form and function exist in perfect balance, adding both sophistication and comfort to every detail.
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Multiple Locking Points
Designed to let natural light flow freely while maintaining a high level of security, the system integrates three locking points for enhanced anti-burglary protection — ensuring that only light and its users are welcome inside.
The Options


THE TECHNOLOGY
THERMAL INSULATION
An expansive opening paired with an interior that meets the same high standards. This aluminum system serves as the defining boundary — a line of defense against the elements. Every detail has been engineered to ensure lasting protection and performance.
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01. Up to 0 14/16 in Insulating Bars (EN-US)
Insulating bars reinforced with 25% glass fiber — 0 14/16'' in the sash and 0 15/16'' in the frame and thresholds — deliver exceptional thermal insulation and enhanced rigidity.
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02. Co-Extruded Gasket
A co-extruded gasket is applied along the perimeter of the frame, optimizing sealing and improving overall energy performance.
ΤΗΕ ADVANCED SEALING SYSTEM
One of the key challenges for aluminum systems designed for extra-large openings lies in achieving superior sealing performance. Through advanced technologies and rigorous testing, this system delivers results that go beyond reliability — ensuring exceptional efficiency and long-term protection.
01. Optimal 2-Level Waterproofing
Q-LON insulation is applied in the successive area of the insulating bars, even in the narrow mullion width edition.
02. EPDM Gasket Corners
Precision-molded EPDM corners provide complete sealing continuity, maintaining protection even under extreme weather conditions.
03. EPDM End Caps and Gasket Extensions
Sash joints are no longer a weak point — EPDM end caps and gasket extensions ensure uninterrupted perimeter sealing for consistent waterproofing performance.
04. Optimized Watertightness
Q-Lon gaskets positioned along the frame perimeter, combined with heavy-duty rollers, enhance watertightness and overall structural integrity.
05. Watertight and Super Clean
A perimetric socket channel for the glazing bead, designed with an elevation difference between the inner and outer sash surfaces, effectively prevents water accumulation and ensures a clean, watertight finish.
06. Concealed Water Drainage System
Discreetly integrated into the threshold, the concealed drainage system efficiently channels away water while maintaining a clean, refined appearance — enhancing both aesthetics and functionality.
Durability That Lasts a Lifetime
Weather becomes part of the view — not a concern. This system transforms every season into a backdrop for living, combining refined aesthetics with enduring strength.
01. Smoother Rolling
A stainless steel rail with enhanced design and reinforced thickness ensures impeccable functionality and smooth operation, even under demanding glazing loads.
02. Efficient Protection
Next-generation joint corners with integrated side caps and dual-component adhesive completely seal the connection points, providing reliable long-term protection.
03. Maximum Strength
Engineered reinforcements are tailored to meet specific wind pressure requirements, ensuring structural stability and lasting performance.
04. Multiple Locking Points
Designed to welcome light — and nothing else. The system integrates three locking points on the door for advanced anti-burglary protection and lasting security.
THE IDENTITY
DESIGN
| Sash Depth | 3 in | |
| Min Face Height Frame–Sash | 3 1/16 in | |
| Min Face Height Threshold–Sash | 3 5/16 in | |
| Min Face Width Middle Mullion | 4 1/4 in |
PROPERTIES
| Max Sash Height | 137 13/16 in | |
| Max Sash Width | 51 3/16 in | |
| Max Sash Weight | 507 lb | |
| Max Glass Thickness | 2 1/16 in |
THE PERFORMANCE
Uf Value (≥)
0,19 BTU/hr·ft²·°F
Uw Value (=)
≥ 0.29 BTU/hr·ft²·°F
Air Permeability
Class 3
Watertightness
7A
Resistance to Wind Load
C2
THE TYPOLOGIES
3 SASHES
3 SASHES & DOOR
5 SASHES
5 SASHES & DOOR
7 SASHES
7 SASHES & DOOR
3 & 3 SASHES ANGULAR
2 SASHES
2 SASHES & DOOR
4 SASHES
4 SASHES & DOOR
6 SASHES
6 SASHES & DOOR
8 SHASEHS
3 & 3 SASHES
5 & 3 SASHES
2 & 2 SASHES
4 & 2 SASHES
4 & 4 SASHES
6 & 2 SASHES
3 & 2 SASHES
4 & 3 SASHES
5 & 2 SASHES
All typologies can be constructed with inward or outward opening