Surface rainwater collection and drainage

Roof greening is a special form of greening. It is a form of space
beautification based on the top platform of buildings to store water, cover
soil and create landscape. Make full use of space, save land; improve the
moisture retention performance of the roof, save resources. At the same time,
roof greening can also be combined with reservoir and rainwater infiltration,
groundwater recharge and other measures to store the excess rainwater and
reduce the loss. When the soil is dry, the accumulated rainwater can be used
for irrigation to restore the natural water cycle process damaged by the
building, compensate the natural vegetation occupied by the building, and
restore the complete natural ecosystem.

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