Drainage board is a high-density polyethylene (HDPE) geomembrane produced by extrusion molding or blow molding. 

It is a continuous film and shell formed by pressing closed convex circular, cylindrical, and spherical shells on the geomembrane

 through special processes. It has a three-dimensional space and a certain support height, and liquids and gases can flow and

be discharged inside it.

This is a functional material with many potential functions. By using this board, it is easy to construct an overhead layer, 

which can be used to form drainage and exhaust channels, as well as achieve sound insulation and seismic isolation functions.

 Drainage protection boards can be widely used in the field of civil engineering and construction, including in layer overhead 

systems, drainage and ventilation systems for planted roofs, basement waterproofing, system drainage protection, moisture-proof

 and thermal insulation protection for indoor floors, and drainage and waterproofing for highway tunnels.

Product performance advantages

Water guiding and drainage properties:

The drainage board has a concave convex hollow vertical reinforcement structure, which can quickly and effectively discharge 

rainwater, greatly reducing or even eliminating the static water pressure of the waterproof layer. Through this active water guiding 

principle, active waterproofing can be achieved.

Waterproof performance:

Polyethylene (HDPE) and polystyrene (PVC) drainage board materials are themselves excellent waterproof materials. By adopting 

a reliable connection method, the drainage board becomes a good auxiliary waterproof material.

Protection and Protection:

Drainage boards can effectively protect structures and waterproof layers, and resist various acids and alkalis in the soil as well as 

plant roots. When backfilling the basement exterior wall, it can protect the building and waterproof layer from damage.

Sound insulation, ventilation, and moisture prevention functions:

Laboratory data shows that polyethylene (HDPE) and polyvinyl chloride (PVC) drainage boards can effectively reduce indoor noise

 levels of 14 decibels and 500Hz, and have significant noise reduction and sound insulation functions. Waterproof water guide boards 

can also provide good ventilation and moisture resistance when used on floors or walls.

Product application

The drainage function and filtration effect of Haozhuo drainage board are more significant, and the economic benefits are more 

affordable than traditional stone ceramic particles. Widely used in:

1. Greening project: garage roof greening, roof garden, vertical greening, sloping roof green lake, football field, golf course;

2. Municipal engineering: airports, building embankments, subways, tunnels, landfills;

3. Construction engineering: upper or lower floors of building foundations, basement interior and exterior walls, roof anti-seepage 

and insulation, etc;

4. Transportation engineering: highway, railway subgrade, embankment and slope protection layer;

5. Water conservancy engineering: reservoir anti-seepage, reservoir, artificial lake anti-seepage