High performance plasterboard from Knauf Drywall sets the tone for quality construction in a stunning new residential development amid the classic architecture of Liverpool’s World Heritage Site. Knauf Soundshield partitions at The Unity provide enhanced acoustic privacy, rekindling the tradition of excellence in the city’s great buildings.

The Unity is a 27 storey apartment building and one of two towers in a £60 million mixed use development at Chapel Street in central Liverpool. It is close to the Three Graces – the trio of riverfront buildings at the focus of the city’s architectural heritage. Topped by a futuristic penthouse pod, The Unity has 161 luxury apartments varying from one to three bedrooms. The adjoining second tower, the 16 storey 20 Chapel Street, has 13,935m2 of office accommodation and 836m2 of ground floor retail space. The project was designed by architects Allford, Hall, Monaghan, Morris and built by Laing O’Rourke for Rumford Investments.

Using Knauf Drywall products supplied by Encon, Manchester, Blackburn-based sub-contractor European Commercial Interiors (ECI) was one of two installers responsible for ceilings and partitions throughout The Unity. With specification support from the Knauf Drywall Technical Services Team, ECI installed 130mm separating walls consisting of two layers of 15mm Knauf Soundshield on each side of Knauf ‘C’ studs. With a 25mm insulation quilt in the void, this partition delivers 57dB airborne sound reduction between apartments – providing privacy that meets the highest modern standards. The partition also has a 90-minute fire rating.

Jeff Eastham, Managing Director of ECI, says partitions within apartments are mostly single layers of 12.5mm Knauf Soundshield on 70mm Knauf ‘C’ studs, which give 40dB airborne sound reduction between rooms. Knauf Sound Moistureshield is used for extra durability in the more humid atmosphere of bathrooms. The Knauf MF Ceiling System, using standard 12.5mm wallboard, is used throughout the apartments. ECI installed the Knauf Shaftwall system, with its Coreboard and Fireshield, in service cores.

“We have a long relationship with Knauf Drywall,” says Jeff Eastham. “Their products are very good to work with – and they offer excellent support and technical backup. This enabled us to exploit all the benefits of drywall construction and meet a challenging schedule.”

Knauf Soundshield is a high performance plasterboard designed for areas where sound reduction is of particular importance. Its high mass and tuned core help to absorb sound energy, giving enhanced acoustic performance to Knauf Drywall systems. Knauf Drywall manufactures a full range of plasters, plasterboards, insulating laminates, drywall accessories, metal sections and steel building systems, for domestic and commercial applications, from factories at Sittingbourne in Kent and Immingham on Humberside.

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