Steel manufacturer Severfield has revealed it has spent almost £1m on the programme of bolt replacement works at Rogers Stirk Harbour + Partners’ (RSHP) Cheesegrater building
Three bolts, described as the size of a human arm, have broken on the City of London skyscraper since it officially opened last September. Early tests showed the components had fractured due to a material failure called hydrogen embrittlement which occurs during the manufacturing process.
In a trading update, the steel specialist said the programme of works was taking place on the Leadenhall Building in conjunction with British Land, Laing O’Rourke and Arup and was likely to continue until the end of 2015.
It said: ‘While these works progress, all parties continue discussions to agree where the liability for the costs of the programme should rest.
‘The group’s costs are being regarded as exceptional and will not impact our underlying operating profit for the current year.’
It said current trading was in line with management expectations and that its UK order book of £194million has ‘strengthened further in recent months and provides a solid platform for a return to revenue growth in the next financial year’.