These countries also benefit from having newer buildings, which make it easier to install green roofs. ![]() Toronto has policies dating from the 1990s, encouraging the development of urban farms on rooftops. Again, city leaders and authorities have helped push the movement forward – only recently, San Francisco created a policy requiring new buildings to have green roofs. In North America, green roofs have become mainstream, with a wide array of expansive, accessible and food-producing roofs installed in buildings. London is home to much of the UK’s green roof market, mainly due to forward-thinking policies such as the 2008 London Plan, which paved the way to more than double the area of green roofs in the capital.Īn edible roof at Fenway Park, stadium of the Boston Red Sox. The UK is relatively new to developing green roofs, and governments and institutions are playing a major role in spreading the practice. But buy-in from city authorities, businesses and other institutions is crucial to ensuring their success – as is research investigating different options to suit the variety of rooftop spaces found in cities. These increasingly radical urban designs can help cities adapt to the monumental challenges they face, such as access to resources and a lack of green space due to development. Stuttgart, in Germany, is thought of as “the green roof capital of Europe”, while Singapore is even installing green roofs on buses. The world’s largest rooftop farm will open in Paris in 2020, superseding similar schemes in New York City and Chicago. More and more private companies and city authorities are investing in green roofs, drawn to their wide-ranging benefits which include savings on energy costs, mitigating the risk from floods, creating habitats for urban wildlife, tackling air pollution and urban heat and even producing food.Ī recent report in the UK suggested that the green roof market there is expanding at a rate of 17% each year. Rooftops covered with grass, vegetable gardens and lush foliage are now a common sight in many cities around the world.
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