It helps plants and food crops flourish and it keeps grasslands green and lush.
Green roof absorb rainwater.
February 08 2019 10 48 am share on facebook.
This delays the discharge of rainwater to the sewage system purifies the rainwater and water also evaporates through the plants.
Green roofs absorb rainwater grow food.
Extensive green roofs will capture and retain about 55 of the annual rainfall thereby reducing stormwater runoff to the storm drainage system in pennsylvania.
By using green roofs as rainwater capture areas the amount of collected water for reuse will be reduced already due to the absorbed amount of water in the system itself.
Excess water drips from the roof gradually so drains are not overwhelmed by a sudden deluge.
Rainwater is essential for life.
Keep in mind that this assessment only applies to the green roof footprint which is typically less than 90 of the building footprint not the whole parcel being developed.
Green roofs can be effective in both urban and rural areas as a solution to managing rainwater drainage.
Up to 75 of rainfall is absorbed by an extensive living roof and up to 90 is absorbed by an intensive green roof system.
A green roof absorbs rain water by the water buffering in the plants substrate and drainage layer.