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Case Study

PERTH CITY HALL

Location

Location

Perth

Material

Material

Sika - Sarnafil Single Ply Membrane Roof

Client

Client

BAM Construction

Duration

Duration

April 2021 - September 2022

Sector

Sector

Leisure

Value

Value

£450K

The transformation of the former lesser hall into a dynamic communal space, complete with a café and event venue, stands as a testament to our commitment to functionality and inclusivity, serving not only visitors but also local inhabitants. 

Mecanoo Architect's

£26.5M

Total project value for the Perth City Hall redevelopment.

1911

Original built Edwardian City Hall (now home to the stone of destiny).

100+ Years Old

Age of the existing roof structure surveyed and overlaid by Procladd.

Case Study: Perth City Hall

Procladd were proud to support the redevelopment of the historic Perth City Hall into a world class £26.5m museum—now home to the iconic Stone of Destiny. Delivered by BAM Construction for Perth & Kinross Council and Hub East Central, the project formed a key part of the Tay Cities Region Deal and focused on sensitively transforming the Edwardian building into a modern cultural destination while respecting its protected heritage features.

Our Scope: Upgrading the Roof to Modern Standards

As part of the building’s conversion, Procladd were appointed to refurbish the existing roof and bring its performance in line with current building regulations. The project required an overlay solution that would preserve the existing roof structure while delivering long term waterproofing, improved thermal efficiency, and compliance with modern standards.

Our package included:
•    Installation of Sika Sarnafil G410 15EL Single Ply Membrane
•    Full roof insulation upgrades
•    Lareine Engineering circular rooflights
•    New safety line systems and access ladders
•    A combined mechanically fixed and adhered system, tailored to the building’s varied existing substrates

Sika was specified due to the roof’s original concrete deck, and our installation method ensured a durable, high performance solution suitable for a sensitive heritage environment.

Complexities of Working with a 1911 Heritage Structure

Originally completed in 1911, Perth City Hall presented several technical challenges. Before design and installation could begin, Procladd undertook intrusive investigation works, including:
•    Coring samples to determine the existing build up
•    Assessing substrate condition and structural integrity
•    Identifying suitable fixing solutions compatible with the 100 year old roof

This ensured that the overlay system was designed specifically for the building’s condition, preserving as much original fabric as possible while guaranteeing long-term performance.

Delivering High Standards Within a Constrained City-Centre Environment

The project’s city centre location demanded meticulous planning and coordination. Located in the heart of Perth, the building is surrounded by busy public areas, narrow roads, and adjacent residential properties—requiring the team to work safely, quietly, and efficiently at all times.

Our management team introduced:
•    Timed deliveries to work within limited site space
•    Careful traffic and pedestrian management
•    Reduced noise working methods due to nearby residential flats
•    Strict sequencing to avoid disruption to the city centre

Despite tight access and high footfall, the works were delivered safely and to programme, ensuring no impact on the wider museum redevelopment schedule.

Supporting a Sensitive and Sustainable Transformation

The reroofing of Perth City Hall played an essential role in converting the former concert venue into a modern, environmentally efficient museum space. Our installation improved:
•    Thermal performance, supporting improved energy efficiency
•    Long term building protection via a durable single ply membrane
•    Daylighting, through new circular rooflights
•    Safe future access, thanks to permanent safety systems

By enhancing the existing roof rather than replacing it entirely, the project aligned with the conservation led approach adopted by Mecanoo Architects—a “light touch” design philosophy that balanced heritage protection with modern functionality.

A Landmark Redevelopment for Perth

The transformation of Perth City Hall marks a significant moment for the city’s cultural regeneration. Now the new home of the Stone of Destiny and over 3,000 historic artefacts, the museum stands as a major visitor attraction and architectural showcase.

Procladd are proud to have contributed to the building’s revival, delivering a technically demanding roofing package that supports its long term preservation and public use. Our work ensured the historic fabric was protected while providing a modern, high performance roof capable of serving the museum for decades to come.

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