A GreenRoof Case Study

摘要

Calming stormwater. Close to 70% of the Hawthorn neighbourhood, where this green roof is located, is comprised of hard surfaces. These generate stormwater runoff and lead to flooding, and movement of litter and contaminated water to the Yarra River and Port Phillip Bay. Roofs make up 40% of local non-pervious surfaces. This rooftop grassland can store about 5 mm of rain, helping to reduce the intensity of runoff and its associated problems. Cooling our home with plants. Comfort levels in the home are a major benefit. The roof cavity temperature of this home was measured to be 10 degrees lower on a hot day compared to pre-green roof days. During the January 2014 heat wave of 42; 41; 43; and 42℃ consecutively, the underlying rooms did not exceed 28℃.