The University of London is the only Higher Education institution in Europe specialising in the study of Asia, Africa and the Middle East. The library houses over 1.2 million volumes together with a major collection of archives, manuscripts, rare books and special collections.
As one of only five National Research Libraries in the UK, the library attracts scholars from all over the world to consult its holdings and further their research.
The refurbishment of the ground and lower floors provided a new reception, study rooms, music practice rooms and archive facility.
Sandy Brown was appointed by the architect to provide acoustic advice on the refurbishment. Acoustic criteria and design strategy covered:
• mitigation of noise ingress into the library
• internal acoustic separation between spaces within the library
• room acoustics and acoustic finishes
• building services noise & vibration control.
Special acoustic features
The design proposed the removal of the existing sound absorbent ceiling and replacing it with exposed concrete soffit. As this would increase the reverberation time in this key space the use acoustic baffles were proposed, located directly above the book shelves. This allowed the library to maintain similar reverberation to the pre-existing space.
An initial design aspiration was to use glazed partitions between the music rooms and the library to link the spaces and keep a visual connection. As this would provide a lower level of acoustic separation between the two spaces, audio demonstrations were used to assist the Client in understanding the expected levels of noise breakout associated with the various music sessions. This allowed the client the opportunity to understand the limitations of the proposed glazed partitions, and the decision was taken that the control of sound transfer was a higher priority than the transparency, and the design was amended to provide non-glazed high performance partitions.