Keybridge House in Vauxhall, use Dufaylite Clayboard
Queensferry Crossing from Port Edgar, use Dufaylite Clayboard


Replacing an eyesore

Keybridge House, a former BT telephone exchange in Vauxhall which was erected in the mid-1970s, was variously described by architects as ‘brutalist’ or ‘forbidding’. A new £50m, 74,300m² residential-led development has transformed the site, delivering retail units, office space, and a new primary school, as well as 415 new homes.

Dufaylite Clayboard was specified as a void former for the regeneration project as part of a transfer structure to keep load off the existing concrete foundation slab. Part of the design required Dufaylite to fabricate bespoke-length Voidpak systems to use with the non-standard 1500mm deep beams. The beauty of our Clayboard system is precisely in its ability to come as either standard lengths and depths or entirely bespoke solutions – some as simple as void forming for a home extension and some as grand as large-scale civil engineering work.

Installation of our compressible void former was carried out by leading foundations specialist contractor O’Halloran & O’Brien.

A key part of our supply chain was our West London distributor SIG South Ruislip, sending the best part of 4,000m2 of Clayboard panels for use on the project.

October 2018.

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Client. Keybridge House.
For. O’Halloran & O’Brien.
Distributor. SIG South Ruislip.