Roof greening structure

Abstract

The invention discloses a roof greening structure. The roof greening structure is provided with a vegetation layer and a roof structure layer. A planting medium layer is arranged at the bottom of the vegetation layer. An isolation filtering layer is arranged at the lower end of the planting medium layer. A water drainage / storage layer is arranged at the lower end of the isolation filtering layer. A root system puncture resisting waterproof layer is arranged at the lower end of the water drainage / storage layer, a protective layer is arranged between the water drainage / storage layer and the root system puncture resisting waterproof layer, a waterproof layer is arranged at the lower end of the root system puncture resisting waterproof layer, a leveling layer is arranged at the lower end of the waterproof layer, a heat preservation effect is arranged at the lower end of the leveling layer, and a slope finding layer is arranged between the heat preservation layer and the roof structure layer. The roof greening structure is simple, convenient to use and smooth in water drainage, roof water deposition is not likely to happen, the survival rate of plants is increased, the good water damage resistance and the good puncture resistance are achieved at the same time, the water drainage performance is improved, the roof bearing pressure and potential hazards are reduced, labor and cost investment is reduced, maintenance cost is reduced, and service life is prolonged.

Description

technical field [0001] The invention relates to a roof greening structure. Background technique [0002] In the existing green roof construction, the structure is often too simple. For example, traditional gravel or pebbles or even cinders are often used as the overhead drainage layer, resulting in poor drainage congestion, easy to cause water accumulation on the roof, and then cause rotten roots of plants to die, and the roof cannot form a continuous greening state; at the same time, many roofs are green In the design and construction, often only the drainage layer is kept, and the design of the filter protection layer is ignored, so that when rainwater or irrigation water infiltrates, the sediment will fall, and the water and soil isolation cannot be achieved, and the drainage gap of the drainage layer cannot be guaranteed for a long time. The result is often After several rainy days, the drainage function of the drainage layer is basically lost; [0003] In addition, in...

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Problems solved by technology

For example, traditional gravel or pebbles or even cinders are often used as the overhead drainage layer, resulting in poor drainage congestion, easy to cause water accumulation on the roof, and then cause rotten roots of plants to die, and the roof cannot form a continuous greening state; at the same time, many roofs are green In the design and construction, often only the drainage layer is kept, and the design of the filter protection layer is ignored, so that when rainwater or irrigation water infiltrates, the sediment will fall, and the water and soil isolation cannot be achieved, and the drainage gap of the drainage layer cannot be guaranteed for a long time. The result is often After several rainy days, the drainage function of the drainage layer is basically lost;

[0003] In addition, in order to save costs, the existing roof greening planting layer often directly selects local loess or sand for planting, resulting in two hidden dangers. This will easily cause pressure and hidden dangers on the roof's load-bearing; second, the local loess and sandy soil supply insufficient nutrients to the growth of roof plants, resulting in weak plant growth. It will take a lot of cost for fertilization and soil improvement in the long run, resulting in manpower and continued waste of cost

[0004] During the construction of existing roof greening, it is often easy to damage the original waterproof layer due to improper operation. After the roof greening is completed, it is very easy to cause roof leakage; The growing and multiplying root system has strong penetrating power, which can easily puncture the original waterproof layer of the roof, which in turn will cause the waterproof layer to become ineffective and cause leakage that is difficult to repair

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