Green Roof Efficiency

Here s a closer look at each one of these and the reasons green roofs are the key to energy efficiency and so much more.

Green roof efficiency. Substrate layer for root systems. The basic structure of a green roof is as follows starting with the topmost layer. The plants create natural insulation which means that there is less need to rely on heating and cooling systems to moderate interior temperatures. To describe this process in the simplest sense sunlight acts as a natural source of heat for a building as the materials comprising its roof and sides absorb the daily dose of thermal energy.

Green roofs benefits improved energy performance energy performance is a key benefit of green roofs. More efficient stormwater management. Green roofs reduce energy consumption. If the air on the roof is made cooler by a green roof this process is easier and uses less energy.

Vegetation layer anywhere from three to 24 inches of growing medium. Green roofs can reduce stormwater peak flow rates by up to 65 percent and increase the time it take the water to reach the sewer by 3 hours. When in cooling mode hvac equipment must pre cool outside air to get it to the required temperature. Whilst green roofs are important for cooling cities as a whole a green roof can roof can also have a positive impact on the energy balance within any given building.

In other words this is a green roof and the planted gardens and vegetation elevate the energy efficiency of a building by reducing the energy needed for its operations. Green roofs can extend a roof s lifespan by two or three times.