Looking for the English translation of green roof

Translated: Green roofs are designed to save energy and collect rainwater. Plant-covered roofs help keep buildings cool. They can extend the life of your roof. Reduces storm water flow to streets and storm drainage systems. A few years ago, the mayor of Chicago, Illinois, visited Germany, a leader in green roof design. Mayor Richard Daley then decided to plant the plant at Chicago City Hall. Today, the roofs of many other buildings also look like parks. In Canada, there is a forest on the rooftop of the Coastline Business Boutique Hotel in Vancouver. Experts say green roofs typically don't heat above 27 degrees Celsius. So temperature is not an issue. But roof gardeners must be careful not to put too much weight on the roof. This is true whether the plant is grown in soil or water. There's an unusual hydroponic farm in New York City. The farm is on a ship called the Science Barge. Rainwater and purified river water are used to grow lettuce, tomatoes, cucumbers and peppers. The farm shows what is possible in designing roof systems. Earlier this year, Texas researchers reported that green roofs could reduce a building's air conditioning costs by about one-fifth compared to black roofs. But they also say that not all green roofs are good. They found different LED markers designed for their ability to keep buildings cool and collect rainwater. Simmons conducts research for the Lady Johnson Wildflower Center at the University of Texas at Austin. "Green roofs have to be done right," he said. For example, he said, "Just having a green roof may not mean much in terms of preventing water from reaching street level. The team placed metal insulated boxes on the experimental roof to create the conditions for a green roof. The study compared products from six companies. The researchers say they want to help companies understand how to improve their designs. Each roof features sixteen different species of plants native to Texas. Researchers say the presence of native plants may help all green roofs collect rainwater more than sedums. Sedums require very little water to grow and are often used on green roofs. Hope to adopt it