Guildhall Yard, east & north block - fire rated duct for historic buildings

Guildhall Yard, east and north block - London

Guildhall Yard, east and north block - London

Fire Protection installed its Flamebar BW11 fire-rated duct in the east and north block of Guildhall Yard, the historic building that has been the city's powerhouse since the twelfth century, when the Lord Mayor of London rivalled the monarch for influence and prestige. Today, 800 years on, Guildhall is still home to the City of London Corporation and plays host to glittering banquets in honour of visiting heads of state and dignitaries, royal occasions and receptions for major historical anniversaries.

Haden Young Ltd awarded Fire Protection the contract to supply and install its unique Flamebar BW11 fire-rated duct for both smoke and kitchen extract systems. Fire Protection has extensive experience working with historic buildings, including the Royal Opera House, the Palace of Westminster and the Royal Albert Hall.

Historic buildings have their own set of unique problems and the Guildhall Yard was no exception - too frequently, little or insufficient thought is given to supports and the correct type of fixings. Fire-rated duct that is not correctly manufactured and installed can still fail in a real fire situation. So, in cooperation with Hilti Ltd, pull out tests were conducted to establish the optimum type of fire-rated fixing to use when securing the ductwork to the original fabric of Guildhall Yard. Support bearers and drop rods were then sized to take account of the pull out test data and to establish single source responsibility for both the manufacture and installation of the fire-rated duct.

Single source responsibility provides reassurance to the client and specifiers that the installation has been carried out by knowledgeable and competent people registered with the FIRAS (Fire Accreditation Scheme) scheme introduced by Warrington Fire Research.