
Senior Architectural Systems has supplied a range of high-performance aluminium fenestration solutions for Island, a striking new commercial development located in the heart of Manchester’s St Peter’s Square.
Designed by architects Cartwright Pickard and delivered by main contractor Bowmer and Kirkland, the 10-storey building offers 100,000 sq ft of Grade A, net zero carbon office space and features a bold, contemporary aesthetic. While the curved and rolled curtain walling on the lower storeys was supplied and installed by Acorn Aluminium using bespoke insulated glazed units, Senior’s systems were used throughout the main elevations to deliver consistent performance and visual impact across the rest of the building envelope.
Senior’s thermally broken SF52 aluminium curtain wall system has been used throughout to create the large glazed elevations and maximise natural light. Offering enhanced thermal performance and slim sightlines, the SF52 system was specified alongside Senior’s SPW600 aluminium windows and SPW501 commercial doors, with the full fenestration package fabricated and installed by Acorn Aluminium.
All systems were finished in an ultra-matt dark bronze powder coating to complement the design and meet the required performance standards. The Island is one of the first major projects in the UK to feature this new paint finish, which is a cost-effective alternative to anodised aluminium and which gives a more consistent finish, superior colour retention and enhanced durability.

Working closely with Acorn Aluminium and the wider project team, Senior’s experienced technical advisors provided design support and guidance throughout the development, ensuring efficient integration of the fenestration systems within the building’s complex façade.
Developed by Henry Boot in partnership with the Greater Manchester Pension Fund, the £66 million scheme is one of the city’s most ambitious net zero carbon office projects. Boasting a range of environmental credentials, Island has been constructed in accordance with the UK Green Buildings Council net zero carbon buildings framework and has a BREEAM rating of ‘excellent’.
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