Roof afforestation system

Abstract

The invention provides a roof afforestation system which comprises roof planting modules, sectional buffering modules, a drain blind pipe, a drain eave gutter and a drainage device. Each roof planting module comprises planting soil and a vegetation unit, each sectional buffering module comprises a pebble groove, soil retaining units and filter layers, the roof planting modules are formed on a roof through the sectional buffering module, each sectional buffering module is arranged between two corresponding adjacent roof planting modules, the soil retaining units are arranged on two sides, in a slope direction of the roof, of each pebble groove, and each filter layer is arranged on one side, close to the corresponding roof planting module, of the corresponding soil retaining unit; the drain blind pipe is arranged below the planting soil between the sectional buffering modules and the drain eave gutter, the drain blind pipe penetrates the filter layers and the soil retaining units and is communicated with the pebble grooves, and water on the roof flows into the drain eave gutter through the pebble grooves and the drain blind pipe and is discharged through the drainage device. The roof is divided into the roof planting modules through the sectional buffering modules, sloping length of each roof planting module is reduced, and uniformity in soil distribution and soil humidity caused by gravity erosion of rainwater is lowered.

Description

technical field [0001] The invention relates to the technical field of roof greening, in particular to a roof greening system. Background technique [0002] With the increase of my country's urban population, urban land is becoming increasingly scarce. Under the background of less and less land for greening on the ground in urban built-up areas and high cost of demolition and relocation, roof greening is a good way to improve the urban living environment. Moreover, roof greening not only improves the urban living environment, but also improves the thermal insulation performance of the roof, purifies the air, and reduces rainwater runoff. [0003] According to the type of roof, roof greening can be divided into general span roof and long span roof. Due to the existence of roof slopes, under the action of gravity and the erosion of rainwater, it is easy to cause uneven soil distribution. With the increase of operating time, fine-grained soil particles will be concentrated in...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a roof greening system to solve the problems of uneven soil distribution and soil moisture, poor water storage effect and inconvenient maintenance caused by the rainwater scouring of the existing roof greening system

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