Rainwater harvesting and reuse is a sustainable practice that can reduce the demand for potable water, mitigate stormwater runoff, and enhance the aesthetic and ecological value of urban architecture.
At the HPI d-school Building, factors such as rainfall pattern, water demand, available space, budget, and local regulations was taken into consideration during the design development of the rainwater harvesting system.
The catchment and storage systems are the key components of rainwater harvesting and reuse. The catchment system is the surface that collects the rainwater, such as the roof, terrace, or balcony. The storage system comprises of tanks in the basement that hold the rainwater for later use.
The rainwater is then reused for toilet flushing and irrigation. During periods of low rainfall, the tanks are topped up accordingly with municipal water.
GREEN STAR CREDITS
The aim of this credit is to encourage and recognise building design that minimises potable water consumption.
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