Arundel Cathedral

Location: Arundel

Client: The Roman Catholic Diocese of Arundel and Brighton

Architect: St Ann’s Gate Architects

Value: Not disclosed

Arundel Cathedral is a Roman Catholic cathedral in West Sussex, originally dedicated in 1873 as the Catholic Parish Church of Arundel.

Above the transept sat a 1970s fibreglass-clad flèche that had become an established feature of the roofscape. Over time, however, persistent water penetration through the structure caused significant deterioration. The project focused on removing the failing flèche, protecting the historic fabric below and delivering a durable replacement appropriate to the cathedral’s architectural character.

The existing flèche had been leaking for many years, leading to serious corrosion within its steel frame and water ingress to the ceiling below. Any replacement needed to improve long-term weather performance without overloading the existing supporting structure above the chancel arch. The works also required careful temporary access and weather protection to safeguard the cathedral during construction, alongside detailed checks to confirm the roof structure could accommodate the increased weight of a lead-clad replacement.

Detailed structural assessment was undertaken to evaluate the existing flèche, its steel support frame and the masonry and roof structure beneath.

A scheme was developed to replace the fibreglass cladding with a new lead-clad steel structure, while strengthening connections within the roof space where required. The original flèche and corroded frame were removed by a 250-foot crane. Comprehensive scaffold and temporary roof specifications were prepared to provide safe access, weather protection and minimal risk to the historic building fabric.

Completed in 2011, the project delivered a new lead-clad steel flèche that resolved long-standing water ingress problems and restored the integrity of this prominent cathedral feature.

The replacement structure provided a more robust and durable solution while respecting the character of the building. Associated strengthening works within the roof space improved load transfer and resilience, ensuring the cathedral was protected from further damage and that the renewed flèche could perform reliably for the long term.

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