Hormann dd hg l aluminium vision and ventilated

Hörmann Rolling Grille DD HG-L

Secure Visibility. Intelligent Airflow. Innovative Direct Drive.

The Hörmann Rolling Grille DD HG-L is the modern solution for securing commercial openings without sacrificing light, air, or visual appeal. Designed as a complete "roller door" system, it combines the elegance of the lightweight aluminium HG-L honeycomb curtain with the raw power and reliability of Hörmann’s Direct Drive (DD) operator technology.

Perfect for shopping centres, secure parking zones, and arcade storefronts, this system rolls up compactly behind the lintel, preserving valuable floor and ceiling space while maintaining a high-security barrier.

Why Choose the DD HG-L?

• Maximum Transparency & Airflow: The HG-L curtain features a sophisticated aluminium honeycomb structure that provides approximately 77% free ventilation cross-section. This ensures excellent airflow for enclosed spaces like parking garages while keeping merchandise clearly visible for retail displays.
• Powerful Direct Drive (DD) System: Unlike traditional chain-driven grilles, the DD operator attaches directly to the barrel. This "direct drive" technology reduces wear, minimizes maintenance, and delivers smooth, reliable lifting power for openings up to 9000 mm wide.
• Space-Saving "Roller Door" Design: The grille rolls up tightly behind the lintel, requiring minimal headroom. This compact design is ideal for fitting into tight spaces where every millimetre counts.
• Enhanced Safety: The system includes a standard safety catch device integrated into the bearing, preventing the curtain from falling in the unlikely event of a drive failure.

Key Features

• Elegant Aluminium Construction: The HG-L curtain is crafted from high-quality aluminium with a natural mill finish (press-finished) as standard. The honeycomb connections are fitted with aluminium crossbars, creating a lightweight yet stable barrier that is "reach-through" resistant for added security.
• Innovative Installation System: Designed for efficiency, the DD HG-L features a 2-part side guide system (for heights over 6000 mm) and pre-assembled components that significantly reduce on-site installation time.
• Narrow Sideroom: Standard narrow aluminium side guides require only 80 mm of sideroom, making it easy to fit even in restricted reveals.
• Flexible Fitting: The operator can be mounted horizontally or vertically depending on the available space, offering versatile solutions for tricky building structures.
• Low-Wear Operation: The guide channels are fitted with premium polyamide sliding surfaces, which ensure the curtain runs smoothly and quietly, minimizing abrasion and extending the lifespan of the grille.

Ideal Applications

• Retail & Shopping Malls: Secure shopfronts that allow "window shopping" after hours.
• Collective Garages: High-ventilation security that prevents unauthorized vehicle access.
• Commercial Building Zones: Partitioning internal areas without blocking HVAC airflow or lighting.

Typical Applications in the UK

The Hörmann Rolling Grille DD HG-L is a versatile security solution designed to balance high-security requirements with the need for visibility and air circulation. Its lightweight aluminium honeycomb construction makes it the preferred choice for three primary sectors across the UK.

1. High Street Retail & Shopping Centres

For shop owners, the HG-L offers the perfect compromise between security and marketing. Unlike solid shutters that "deadise" a shopfront overnight, the HG-L maintains a visual connection with potential customers.

• Window Shopping: The open honeycomb structure allows illuminated window displays to remain visible 24/7, even when the premises are locked down.
• Arcades & Malls: Ideal for securing entrances within larger shopping complexes where aesthetics are critical.
• Deterrent: Provides a robust physical barrier against break-ins while removing the "fortress" look that can deter footfall in pedestrian zones.

2. Underground & Collective Car Parks

The HG-L is widely used in residential apartment blocks and office car parks where airflow is a legal and safety requirement.

• Essential Ventilation: With a ventilation cross-section of approximately 77%, the grille allows exhaust fumes to escape and fresh air to circulate without the need for expensive mechanical extraction systems.
• High Usage Cycles: The Direct Drive (DD) operator is engineered for frequent daily cycles, making it reliable for busy parking areas with multiple residents or staff entering and exiting throughout the day.
• Visual Safety: Allows drivers to see into the garage before entering and pedestrians to see out, reducing the feeling of isolation often found in enclosed car parks.

3. Commercial Interiors & Partitioning

Modern office blocks, universities, and hospitals often require flexible zoning—areas that need to be closed off after hours without affecting the building's climate control or lighting.

• Reception Desks & Kiosks: Secure expensive equipment and sensitive files behind the grille while keeping the area looking open.
• Canteen & Bar Areas: Perfect for closing off food service counters in multi-use halls while the rest of the building remains operational.
• Fire Strategy: The open mesh does not block sprinkler systems or smoke detection coverage, often simplifying fire safety compliance compared to solid doors.