Dumas House Facade & Podium Restoration

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Project Description

Dumas House in West Perth was constructed in the mid 1960s and is Heritage Council of WA listed. The building has two basement levels, a ground floor with entry lobby and support areas and 14 office accommodation levels.

Over 49 years, the heat, cold, wind and rain had deteriorated the building’s exterior in its exposed position north of Kings Park, the materials had reached the end of their useful life and needed to be repaired or replaced.

Duratec and DDR were awarded the contract to complete the repairs which included the replacement of all spandrel panels, ASR treatment to all columns, improvements to the soffits, waterproofing, drainage repairs and gutter improvements.

On the narrow east and west faces of the building, damage to the glazed terracotta blocks was remedied.

Repairs were also required to the building podium which leaked rainwater into the uppermost of two basement levels underneath the building and forecourt.

Project HIGHLIGHTS

Duratec and DDR utilised a mast climber access system using a steelwork substructure to transfer applied loads safely to the ground-floor/basement beams and columns.
A section on all levels of the western and eastern facades behind the spandrel panels was identified as being underreinforced. To provide a durable and long term solution, Duratec and DDR installed stainless steel external reinforcement with masonry anchors extending through and beyond the critical shear zone.
The non-resilient podium tiles directly under the building required a replacement waterproof membrane which would not not transfer concrete substrate movement and subsequently crack the tiles. Duratec and DDR’s solution was the installation of a crack isolating membrane which absorbs movement to avoid damage to the tiles above.

Client

Building Management & Works
DDR CONTACT

Call DDR 1300 402 409
Project Type

Government

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