Roofs with vegetation are widely believed to extend roof life, conserve energy, and reduce stormwater runoff and air pollution; new studies show they can also boost the performance of solar panels. Plants reduce a roof’s contribution to the urban heat-island effect by lowering the surrounding air temperature through evaporation; this cooling can also make photovoltaic panels perform more efficiently. Plants also reduce airborne pollutants and dust particles, allowing the panels to absorb more sunlight.
GSFI CEO Madeline Cammarata comments, “In the last few years, rooftop gardening has been growing exponentially. The opportunity and necessity to grow crops on rooftops and inside tall buildings allows for efficient use of the limited space found in cities and we have the infrastructure in place to begin cultivating these structures alongside and even within a select group of our current projects.”
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