This study at Bentley Primary School shows that green walls irrigated with greywater improve water quality, offer thermal comfort, and enhance sustainability.
Scale: Residential Lot
Development Type: Commercial development, Public open space, Residential development, Strata/Multi-dwelling
Local Government: City of Canning
WSUD Solution: Green roof/walls
This case study explores the implementation and performance of green facades irrigated with greywater at Bentley Primary School, located in Perth’s Mediterranean climate. The project aimed to assess the thermal and water performance of these facades, focusing on their ability to utilize greywater for irrigation while providing cooling effects and environmental benefits. The study, conducted between June 2019 and December 2020, evaluated the suitability of specific plant species for greywater irrigation, their water usage, and the quality improvement of the outflow water. Key findings highlighted the effective reduction in ambient temperatures behind the facades, significant evapotranspiration rates, and the potential for nutrient attenuation in the greywater used. The outcomes suggest that green facades, irrigated with greywater, offer a viable solution for enhancing urban environments in similar climates, with recommendations for further research to explore their broader applications and benefits.
Our focus areas
Supporting community wellbeing and healthy environments within resilient and sustainable places throughout Western Australia.
