Green roofs have many different features which make them unique. They have a wide range of public and private benefits and they are simply and addition to the existing roof.
Green roofs protect roof membranes and give the materials a longer lifespan making them last twice as long and save money in fixing problems. They also help save money from heat and cool air loss from the building. Different months of the year have different weather conditions, and the green roofs help with the loss of heat and the gain as well.
There are plants that have many different effects on the roof. They filter air moving across it removing airborne particles. Storm water is absorbed and help moderate the temperature of the water and additionally act as water filters. They also have potential to reduce or even eliminate roof drains. Food can also be grown on green roofs which help save money for the owners.
Some green roofs, like Boston’s City Hall, have residential wind turbines on them to help produce electricity for the building. The wind turbines are all natural and use just the wind to make energy.
The soil and plants also insulate sound produced by traffic, airplanes, machinery, etc and help lower and block sound frequencies.