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Premier Inn

Paddington, London, W2
At a Glance
Roof Finish
Warm roof with Asphalt top finish
Supported
2.5 metre Ballasted Screen
System
Screen Support
The Architect sought an efficient solution for screening the rooftop mechanical and electrical equipment, including HVAC units, without compromising the structural integrity of the roof. They required a solution that adhered to local building codes while minimizing roof penetrations to avoid leaks and other long-term damage.
Big Foot Systems’ non-penetrative screen support system was selected as the most viable option due to its innovative design and ability to meet both functional and aesthetic requirements. In addition to the functional installation of the equipment, the building had stringent design guidelines that required equipment to be screened from view while adhering to height and material specifications outlined by the local authorities. The building's location meant that the rooftop structures had to withstand significant wind loads more than 100mph, making it crucial for the screening system to be robust without compromising the roof's integrity.
The project began with a detailed survey of the rooftop to understand the equipment's positioning, the wind load requirements, and the structural limitations of the roof. We provided a custom design in CAD that accommodated the building’s unique requirements. Our in-house engineers performed load calculations to ensure that the system could handle both the screen weight and additional forces exerted by wind loads. Special attention was given to areas of the roof that were more exposed to strong winds, with additional ballast added for reinforcement.

The modular nature of the Big Foot system was designed for a quick assembly on-site. The base frame was designed to sit directly on the roof surface, with ballast weights added to secure the structure without requiring any roof penetrations. Working in partnership with Bespoke Acoustic Solutions, the screening was carefully installed around the mechanical units in line with local building regulations. The screening materials were powder-coated by BAS to match the building’s exterior design, providing a seamless aesthetic.

Post-installation, the system underwent wind load testing to ensure stability and compliance with safety standards. It successfully passed all tests, confirming its suitability for the high-wind environment.