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Remedial Works to Pierhead Building, Cardiff

Scaffolding Contractor: SHS Scaffolding Ltd / Main sub-contractor: Know & Wells

Built in 1897, the Grade 1 Listed Pierhead Building in Cardiff now houses the Visitor and Education Centre of the National Assembly of Wales.  When major restoration work was carried out to the slate roof and fascia, a unique temporary roof was required to enable work to continue safely and without disruption to the operation of the assembly.  However, the building's tall chimney stacks and exposed marine location presented serious challenges.


HAKI created a unique polygonal shape, the first one in the UK, using the HAKITEC 750 temporary roof system which provided complete containment of the building, including the chimney stacks.  The superior strength to weight ratio of HAKITEC 750 eliminated the need for a 24m internal spine beam and several lifts of support scaffold at the sides.


The structure was produced up to five times faster than conventional methods, creating a virtually watertight area that formed an excellent working environment.


This project illustrates the versatility and design of the HAKITEC roof system whilst providing an ideal working environment ensuring the restoration work undertaken was of the highest quality.  The installation has set new standards in protection and is destined to open up wide-ranging opportunities to architects and contractors alike.


"The extreme versatility of the HAKI temporary roof allowed the main sub-contractor to work safely while completely protected from all the elements.  This was a prime concern for us as the building is located on the edge of Cardiff Bay and is frequently subject to high winds" commented Paul Smith of SHS Scaffolding Ltd.  "It also meant that the Parliament building was fully operational throughout without the need to vacate the staff while the work was being carried out due to safety reasons."


Major Benefits

  • Lightweight components, combined with the HAKI Trak sheeting, eliminate the need to access the roof structure during installation.
  • The polygonal design dramatically reduced the loads and reduced the height of the side support scaffold.
  • The polygonal design also removed the need for a 25m "spine beam".

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