Roof greening system

Abstract

The invention relates to a rooftop greening system which comprises a support layer arranged on a balcony, a waterproof root retaining layer, soil and various green plants. Since an absorption layer used for absorption is arranged between the waterproof root retaining layer and the soil and a drainage layer used for draining water is arranged in the absorption layer, redundant water in the soil can be absorbed into the absorption layer; then the water flows into a drainage throat, a drainage branch throat or a flat drainage plate, and finally is discharged to the outside directly without passing through the surface of the balcony, thus avoiding accumulated water on the balcony, reaching the effect of avoiding water seepage at the lower layer of the rooftop and meanwhile improving the water prevention service life of the balcony. The greening system directly drains the water to the outside, without passing through the surface of the balcony; the drainage layer is arranged on the upper parts of the support layer and the waterproof root retaining layer, so the rooftop greening system is isolated from the surface of the balcony through dry air for a long time, which is good for heat insulation and heat preservation and can provide good ventilation, thus reaching the effect of improving the ventilation property and drainage performance of the whole greening system.

Description

【Technical field】 [0001] The invention relates to a roof greening system for roof greening. 【Background technique】 [0002] With the continuous increase and accumulation of the social population, the pressure of pollution to the social environment is also increasing. Roof greening has become an important part of urban environmental greening. The traditional method of roof greening is: first add anti-root boards, drainage boards, etc. on the roof, and lay geotextiles or non-imitation cloth on the drainage boards. A layer of soil or humus soil is laid on the geotextile or non-woven fabric, and various plants are planted on the soil or humus soil. The production process of its greening method is complicated. When it rains and irrigates, water and water containing other substances first flow between the roof and the roof greening system, and then discharge to the storm drain through the surface of the roof. This causes water to accumulate at the bottom of the roof greening sy...

AI Technical Summary

Problems solved by technology

This causes water to accumulate at the bottom of the roof greening system for a long time. If the waterproof layer is poorly crafted or has been damaged by long-term exposure to the sun, the lower layer of the roof will ea

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