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Client: UK Detention Service

Main Contractor: Tilbury Douglas Construction

Project: Harmondsworth Immigration Detention Centre

Need: To provide secure office and administration facilities for both staff and visitors alike.

Solution: A three storey 2,900m2 steel framed building was manufactured in Rollalong's quality controlled factory. The building was delivered to site in modules and deployed quickly at a rate of 315m2 erected each day. Overall, the project took under a quarter of the time of a traditional construction programme.

In achieving this, there was absolutely no compromise on building design or quality and 60 year design life certification was provided ensuring that the modular structure achieved equivalence to traditional build. The building had also to achieve specific standards of robustness and anti-terrorist resistance. It includes provision for concrete floored plant rooms (13.5 KN/m2 loading) at roof level. Internally the building consists of both open plan areas and partitioned office space.

The building provides an example of the increased use of prefabrication in delivering permanent, blockwork clad traditional buildings following many of the Egan recommendations in terms of increased speed, quality and reduced cost.

Duration: Rollalong completed the manufacture and construction of the modular units in 4 months.