Caswell Installs Ventilation Package for John Lewis

Scope of Work

The John Lewis store at the Trafford Centre was a £35million development which opened to the public in June 2005.

The store covers 12800m2 over two large open plan retail floors and was constructed by Bovis Lend Lease with Balfour Kilpatrick as lead M&E Contractor.

The store is fully air conditioned with all air handling plant and fans situated on the roof overlooking the M60 and Barton Bridge.

Description of Caswell Works:

Caswell were awarded the ventilation package for the manufacture and installation of the following systems:

• Firesafe Fire Rated Ductwork in the Riser Shafts)
• Combined smoke extract and return air systems
• General supply & extract to all floor areas
• Firesafe Fire Rated Kitchen Extract Ductwork to the Restaurants
• Dirty extract systems from the toilets and back of house areas

Caswell took an active role in co-ordinating the services working along side Balfour Kilpatrick and successfully delivered each phase under a strict regime of quality inspections and system hand overs.

The project was delivered on a fast track programme with all works being complete within a 10 month period from July 2004 to May 2005.

Special Details:

The return air systems could quickly be switched to smoke extraction via the BMS in the event of a fire within the building. The use of automated fire/smoke dampers in conjunction with fire rated extract ductwork with by-pass legs on the roof allow the fast removal of smoke should the need arise.

The key motif of this store is a 20m x 20m, 10-tonne light feature, suspended from a central glazed dome above the escalators.