Drapers’ Hall – Livery Hall Roof Void

The Drapers’ Hall was rebuilt in 1772. After a duration of two hundred & forty-seven years, the timbers which support the roof required attention. Restore London oversaw the installation of a newly designed tensioning system, along with a bespoke system of repair.

Each truss was surveyed individually, and where the structural integrity was found to be compromised, the Jakob tensioning system was installed. A total of twelve Jakob tensioning systems were installed.

Two redundant service voids were removed & new joists installed to strengthen the floor whilst twenty-four bespoke shake straps were installed. Ten Simpson strong ties were then installed to spread roof loading and eliminate unnecessary loading points onto the historic timbers.

Restore London surveyed & produced a detailed conditional survey of the fibrous plaster ceiling, cornice & wads. A considerable number of the wads were found to be failing. The wad’s & ties suspending the ceiling were strengthened by installing stainless steel wire fixed adjacent to each failed plaster & canvas wad.


Key Facts

LOCATION

Throgmorton Street, London

DURATION

12 Weeks

CLIENT

The Worshipful Company of Drapers'

COMPLETION DATE

Sept 2019

PRINCIPAL CONTRACTOR

Restore London

VALUE

£305K

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Drapers' Hall Livery Hall Roof

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Drapers All Works

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Jamie Fobert CBE

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MArch MA PGCert PPA ARB RIBA – Architect, Purcell

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