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PROJECT REPORT: CULTURAL, CIVIC & FAITH BUILDINGS
© RBKC; image courtesy Will Pryce
The refurbishment project focuses on the reconfiguration of the building’s facilities to appear as how Leighton and Aitchison originally envisioned
Main challenges
Several significant challenges were encountered during the project, particularly concerning the construction of the basement. This was because it involved temporary support of the historic Winter Studio while work took place beneath it. Additionally, the adjacent basement structures required new connections to be established, adding further complexity to the process.
Upon completion of the basement, attention turned to re-levelling the Winter Studio balcony, which had experienced corrosion and expansion of shimming. This deterioration had a detrimental impact on the adjoining masonry, which in turn supported the perimeter glazing. To address this issue, the entire structure was de-glazed, and the architects were able to retain and restore the original patent-glazed roof framing before it was re-glazed with better performing units. The new glazing was sized such that its total weight did not exceed the capacity of the original framing.
Thermal upgrades
The comprehensive environmental upgrade to the museum was driven by a holistic
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strategy developed through sustainability workshops. The project has focused on optimising the benefits of reconstructed and new construction elements, as well as plant and services, to enhance the building’s overall energy performance while respecting the sensitivity of the listed fabric, alongside the scope of the project. BDP has used “simple and robust solutions” to meet the energy and carbon saving requirements of Part L2A for the extensions and Part L2B of the existing building. The strategies used have been designed to anticipate potential future improvements to the historic house. Some of these measurements include “reconfiguring and enhancing the building fabric to minimise leakage into environmentally controlled and sensitive spaces.” This included providing shelter and enclosure to parts of the envelope of the original house to reduce heat losses, as well as to the new rotunda and basement, and glazed links. Thermal elements were replaced, including the installation of improved insulation in the Perrin roof. The original lantern lights have been utilised for natural ventilation and daylighting. All HVAC services have been replaced
ADF JUNE 2023
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