3, the construction period is short, the cost is low: the construction is convenient, saving 3/4 of the construction period, the cost can save about 1/3-1/2.

4, can effectively collect infiltration water, as garden watering water, save water resources. To realize the recycling of rainwater and irrigated water.

5, with water permeability, heat preservation function.

6, easy to maintain, reduce congestion

7, fast drainage, good effect

The composite drainage board is a system with many functions such as waterproofing, drainage and collection. Compared with the traditional working method, the air permeability observation tube is added to make the system in a breathable state, without air blocking water phenomenon; The system uses siphon to realize the alternating drainage of gravity drainage and siphon phenomenon, the drainage is uniform and timely, and the water flow speed is accelerated. It has the advantages of simplified structure level, system assembly completion, fast construction speed, comprehensive cost reduction, easy maintenance and so on. At the same time, it also prevents rain from depositing in the waterproof layer, thus playing a waterproof effect. Water storage and conditioning function is outstanding: water storage capacity reaches 3.1 liters/square meter, improve drought resistance, but also improve the survival rate of plants. Ventilation: The special design makes the lower part of the beautification layer have excellent air convection, play a good heat dissipation effect, and ensure the oxygen requirements of the root system. Heat insulation: The beautification layer can reflect and absorb a lot of solar heat. Reduce cost: light weight, easy installation, easy maintenance, short construction period: beautification, heat insulation, waterproof once in place, reduce construction costs