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The South Terrace

Water Filtration

Water Filtration

The green roof of the South Terrace functions as a storm water runoff control device. Retaining rainfall allows for the green roof to self-water.

Water Filtration

Studies by the Penn State Center for Green Roof Research have shown green roofs in Pennsylvania's climate retain approximately 50% of rainfall on average. During the summer months, the retention reaches up to 80%. If watering is needed, our green roof uses a high-efficiency drip irrigation system supplied by Pittsburgh's fourth river, an underground aquifer. This system is controlled by a sensor array to provide water only when it is needed, saving over 32,000 gallons of water annually.