Stage 1 comprised replacing an existing 10,500m2 saw-tooth, asbestos roof and rainwater items with new roof that complied with the BCA, including Section J. Stage 2 required 2,160m2 of new roof sheeting and insulation laid over the existing roof sheeting including all associated rainwater items and removal of redundant plant.
During Stage 1 the factory was required to remain operational during the construction process and the existing clerestory windows were also to be replaced. The works were designed and managed in stages according to workplace requirements. Stage 2 was configured to allow works to continue below the existing roof. DTB’s work comprised site inspection, measurement, research, design, documentation for construction, assistance during the construction period and defects reporting.
Both stages were subject to extremely short construction phases, which impacted the erection methods, the Kingspan roof system and the heat within the factory itself.
USYD Chemistry Building Roof
University of Sydney, Sydney
University of Sydney
Mechanical, Structural, Hazardous Materials
The roof of the Chemistry Building Lecture Theatres, East wing and equipment plant platform required replacing, existing plant and equipment was also required to be protected, retained and relocated.
Careful consideration was given to waterproofing membranes suitable for the project as existing bolted box gutters had to be retained thereby causing concern regarding movement. Construction was not able to take place in the Christmas break, requiring the Contractor having to share access to the site within strict protocol & program requirements and to limit disconnection of services to very short periods. Therefore, materials handling during demolition and construction was a key issue of the Tender.