Architect and Builder December 2016 | Page 63

LEFT: Roof Plan BELOW: Future Rooftop Helistop In addition, provision has been made in the lowest parking basement for the construction of a linear accelerator oncology bunker together with associated support services. The hospital lifts have been designed and shafts constructed to enable servicing of the oncology bunker. Future expansion on the top floors will accommodate Chemotherapy and Oncology suites. Innovative use of drywall A major decision was the change from brickwork to St Gobain 106mm drywall with a combination of panels as required to meet the specifications of wet vs dry areas. Drywall design, including type of panels and insulation, was specified to meet the equivalent performance of brickwork in sound transmission and fire resistance. Drywall was used throughout the hospital (except for fire walls on the upper floors). A significant benefit of drywall was substantial mitigation of the construction risk associated with the drying out of brickwork and plaster as the brickwork commenced after closure of the façade on many of the floors. This drywall partition solution led to innovative design and construction solutions being developed: architecture and design. The service lift is designed with a ceiling height necessary to accommodate full height partition boards and full length studwork. Multi-layer pipework was specified to connect to copper ring mains which added to flexibility and speed of construction. Hot water