The water storage and drainage board is made of high-density polyethylene (HDPE) or polypropylene (PP), which is formed by heating, pressing and shaping. It is a lightweight board that can create a drainage channel with a certain three-dimensional space support stiffness and can also store water. This type of board has two comprehensive functions of water storage and drainage. The board has a high spatial stiffness and significantly better compressive strength than similar products (which can be tested on site). It can withstand high compressive loads of over 400Kpa and extreme loads from mechanical compaction during the backfilling process of planting roof. It has the functions of creating internal drainage, discharging soil infiltration water, and storing some infiltration water.

Specification of storage and drainage plate

A-series drainage board

A-H18 drainage board

Material: A-H18 drainage board is made of HIPS, HDPE, ABS. A layer of geotextile is applied on the surface to form a double-sided convex concave drainage board

Function: Not only does it have a double-sided drainage board function, but it also has a water storage function. It can be adjusted bidirectionally in humid environments.

Specification: 2m × 15m/piece, compressive strength (kpa): 200

Application: Widely used in rooftop gardens and outdoor garage roof greening projects.

A-H25 drainage board

Material: A-H25 drainage board is made of HIPS, HDPE, ABS. A double-sided convex drainage board is formed by adding a layer of geotextile on the surface.

Function: It has dual functions of water storage and drainage, with good drainage effect.

Specification: 2m × 15m/piece, compressive strength (kpa): 150

Application: Suitable for roof greening projects in arid and high-temperature areas.

A-H30 drainage board

Material: Double sided concave convex drainage board made of HIPS, HDPE, ABS,

Specification: 2m × 15m/piece, compressive strength (kpa): 150

Application: Mainly suitable for moisture-proof and leak proof underground garage floor and basement floor.

M-series drainage board

M-H10 drainage board

Material: The bottom plate of M-H10 drainage board is made of HIPS, HDPE, ABS.

Function: Only has drainage function, resists long-term high pressure, and will not deform. This long-term compressive strength can not only withstand the weight and load of the concrete floor, but also withstand the inevitable external pressure and impact forces during construction, such as vehicle and worker trampling and concrete pouring impact, etc. (under the condition of covering a 30 cm soil layer). Long term maintenance of the bottom plate without deformation can maintain the original drainage volume.

Specification: 2m × 15m/piece, compressive strength (kpa): 360

Application: Widely applicable to retaining walls, basements, tunnels, slopes, flower troughs, platforms, slope protection, and highway subgrades.

M-H20 drainage board

Material: M-H20 drainage board is made of HIPS, HDPE, ABS. Apply a layer of geotextile on the surface to form a composite drainage board.

Function: Single sided convex drainage board with only drainage function. Compared with M-H10, M-H20 has a larger drainage capacity.

Specification: 2m × 15m/piece, compressive strength (kpa): 200

Application: Suitable for large-scale square greening and garage roof greening projects with deep soil layers that do not require water storage function.

M-H25 drainage board

Material: M-H25 drainage board is made of HIPS, HDPE, ABS. Apply a layer of geotextile on the surface to form a composite drainage board.

Function: Single sided convex drainage board with only drainage function. Compared with M-H10, M-H25 has a larger drainage capacity.

Specification: 2m × 15m/piece, compressive strength (kpa): 150

Application: Suitable for large-scale square greening and garage roof greening projects with deep soil layers that do not require water storage function.

T series drainage board

Material: Made of injection molded polyethylene (HDPE) raw material, with high compressive strength and not easily deformed. Each block can be interlocked with each other, and a layer of geotextile can be laid on the pre laid drainage board to form a composite drainage board.

Function: A new type of drainage material that integrates drainage and water storage functions, and has the advantages of light weight, high load resistance, drainage, water storage, thermal insulation, convenient transportation, and easy construction.

Specification: 33.3 × 33.3 × 30mm 33.3 × 33.3 × 25mm 33.3 × 33.3 × 20mm Compressive strength (kPa): 500

Application: Widely used for roof greening, underground garage roof greening, golf courses, lawn course drainage, and can store a large amount of water in pillars.

W series drainage board

W-H30 drainage board

Material: Injection molded from polypropylene (PP), with a layer of geotextile on the surface to form a composite drainage board.

Function: High compressive strength and large drainage capacity.

Specification: 336 × 336 × 30mm Compressive strength (kpa): 1000

Application: Suitable for large squares and golf courses, the combination of W-H30 and A-H18 can greatly improve the drainage effect of A-H18.

Characteristics of Storage and Drainage Plates

1. Easy to construct, easy to maintain, and economical.

2. Strong load resistance and durability.

3. Can ensure that excess water is quickly drained away.

4. The water storage part can store some water.

5. Can provide sufficient water and oxygen for plant growth.

6. Lightweight and strong roof insulation function.

Construction technology for installation of water storage and drainage plates

The installation and construction of water storage and drainage plates shall be laid according to the design drawings, and the plates shall be overlapped by interlocking.

Installation and Construction Conditions for Storage and Drainage Plates

1. The surface of the base layer should be flat;

2. The construction of the fine aggregate concrete protective layer has been completed and accepted.

Construction and laying method of water storage and drainage board

After the construction of the waterproof layer and its protective layer is completed, the drainage board will be laid. Require the slope of grassroots drainage to meet 2 ‰~5 ‰;

2. Lay the cup-shaped mouth of the drainage plate upwards, with the perforations interlocked;

3. Cover the drainage board with geotextile, and overlap the geotextile by 10-20cm to prevent mud and water from passing through the geotextile and clogging the drainage system, resulting in poor drainage and reduced water storage capacity;

4. Lay 10-20mm medium coarse sand on the geotextile to form a permeable filter layer, which can prevent the loss of planting soil;

5. Cover with planting soil of appropriate thickness.

6. It is necessary to protect the finished drainage board. After the drainage board is laid, it should not be allowed to directly push hand carts on the drainage board. When transporting materials, wooden boards and horse tracks should be laid. Ensure that the soil is filled as it is laid.