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Sutherland Townhouses Get Superior Drainage Treatment with GEOmasta™ 

Sutherland Residential Development
Corvus Primesite, December 2018

THE PROJECT

Jaybro supplied approximately 300 square metres of mastaTEX Drainage Cell & mastaTEX FiltaFab for a residential development in Sutherland. Corvus Primesite is nearing completion of a modern townhouse development in the heart of Sydney’s Sutherland shire.

The leafy and desirable Shire will be home to 13 new double storey townhouses. Each residence consists of 3 bedrooms, a modern kitchen, bathroom and ensuite. The units are also coupled with sleek internal and external finishes. Additionally, a 1200 square metre basement will be segregated into 30 car parking spaces. Workers will also build additional services including a lift and stairwells.

Our customer Corvus Primesite is undertaking this project, valued at $6 million.

THE CHALLENGES

The architects designed the townhouses with an indoor-outdoor look and feel. Therefore, gardens and green spaces were a key feature.

The builders would construct turfed and paved areas closely butting up to the porch of each townhouse. Hence, Corvus Primesite required a substrate with excellent drainage properties. The project managers needed specialist geosynthetics to be installed before any turf and landscaping works could begin.

JAYBRO’S SOLUTION

Jaybro recommended that Corvus Primesite use GEOmasta™ Drainage Cell30 and mastaTEX™ FiltaFab to create an exceptionally effective drainage pathway.

GEOmasta™ Drainage Cell30 is a high density polyethylene tile. It acts as a permanent non-clogging void between the concrete slab and overlying soil. Ideal for drainage in rooftop gardens and planter boxes, the strong HDPE will not collapse or distort. Furthermore, the flexible 500mm square tiles allow for installation in many configurations. Each tile is 30mm high and has 95% internal void area, and 67% surface void area. This means that a direct flow of water to designated outlets can occur, avoiding water build up and penetration.

The large surface and capacity void space enables superior drainage efficiency. Conversely, the small voids created by gravel are far less efficient. The lightweight drainage cells significantly reduce weight on the structure by an impressive 98% when compared to gravel.

In this application, Corvus Primesite also used mastaTEX™ FiltaFab as an additional drainage filtration layer. Laid on top of the drainage cells, it provided a highly effective filtration barrier to prevent soil from getting into and clogging the drainage cells.

mastaTEX™ FiltaFab is an excellent staple fibre geotexile used for drainage & filtration. It is commonly used in trenches, raised gardens, as a stockpile cover and behind retaining walls. FiltaFab forms an ideal barrier in subsoil filtering and temporary erosion control.

KEY DATA

  • System used: GEOmasta™ Drainage Cell30 & mastaTEX™ FiltaFab
  • Time Period: Installed December 2018
  • Customer: Corvus Primesite
  • Quantity: Approximately 300 square metres

PRODUCT SPECS

Length supplied:
300 square metres

Customer:
Corvus Primesite

Project:
Residential Townhouse Development

Location:
Sutherland NSW, Australia

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