Contemporary architecture increasingly demands monumental glass facades, multi-story atriums, and exceptionally wide panoramic openings. Such projects require exterior sunshades that make no compromises – in dimensions, stability, or aesthetics. Sunbreakers B400 represent the ultimate in exterior shading, pushing the limits of what is possible with spans of up to 5 meters in a single element.
What are Sunbreakers B400 and who are they designed for?
Sunbreakers B400 are exterior aluminum sunshades with massive ellipsoidal slats, each 400 mm wide. They are engineered for the most demanding architectural projects, requiring exceptional load capacity, extreme durability, and a bold, prestigious appearance.
They are ideal for:
- office skyscrapers,
- sports and event halls,
- airports,
- large public buildings,
- luxury villas with extensive glass surfaces.
B400 is not just a sunshade – it is an architectural feature that gives a building character, strength, and identity.
One slat, five meters of span
The greatest advantage of the B400 system is its engineering superiority. The system allows spans of up to 5000 mm (5 m) without intermediate supports, columns, or rails.
This delivers:
- completely clean façade lines,
- shading entire floors with a single element,
- unobstructed views from the interior,
- a strong sense of prestige and monumentality.
Special internal reinforcement of the slats prevents bending even at extreme lengths and ensures stability in all weather conditions.
Complete blackout despite giant dimensions
Even at these dimensions, the system maintains full functionality. Sunbreakers B400 are equipped with overlapping tabs that ensure precise alignment when closed.
The result:
- total room blackout (blackout effect),
- prevention of light leakage,
- enhanced control over indoor comfort.
This is a significant advantage for conference halls, multimedia spaces, exhibition centers, and buildings where light control is critical.
Security shield and a second façade
Due to their width and thickness, Sunbreakers B400 act as a double-skin façade.
Security benefits include:
- extreme wind resistance – tested for winds over 200 km/h,
- protection against hail and impacts – the 400 mm wide slat forms a near-impenetrable barrier,
- anti-burglary protection – closed slats create a massive metal barrier in front of glass.
B400 therefore provides not only shading but also additional security and protection for the building.
Adaptability to modern architecture
The B400 system allows:
- horizontal or vertical installation,
- fixed or movable configuration,
- use as a functional sunshade or as a permanent architectural façade element.
Due to its size and visual weight, the system is often used as a central design element in contemporary façades.
Advanced control of large systems
Moving massive slats requires reliable technology. The slats allow rotation of up to approximately 150°, enabling precise light and shade regulation.
Recommended control options:
- motorized drive (standard and recommended),
- Smart Home integration with sun and wind sensors,
- fixed configuration for permanent shading,
- manual drive (less common due to system size).
Automation is crucial for safety, comfort, and energy efficiency in systems of this scale.
Energy efficiency at large scale
Sunbreakers B400 are one of the most effective tools for passive cooling of large buildings. They intercept solar energy well before it reaches the glass, significantly reducing indoor heat gain.
Benefits:
- reduced need for air conditioning,
- lower operational costs,
- more stable indoor climate,
- long-term added value of the building.
The large slats create a wide airflow channel, allowing efficient natural hot-air exhaust and preventing the greenhouse effect.
Sunbreakers B400 – when architecture demands the absolute maximum
Sunbreakers B400 are not a standard solution; they are the answer to the most demanding architectural projects. They combine monumental dimensions, advanced structural engineering, full functionality, and striking aesthetics.
When size, security, and prestige are non-negotiable, B400 is the only right choice.
