Geotextile composite drainage geonets combine a flow core with one or more filter layers. geotextile composite drainage geonets need review of both functions under the intended conditions. A composite description should explain the actual core, fabrics and attachment rather than relying on a single overall thickness.

Comparison with HDPE geonets can help separate the bare-core supply from the additional filter requirements. This guide examines the complete construction so purchasers can compare what is included and what evidence applies to each component.

Document the construction

Request the layer sequence, model and factory attachment arrangement. State whether filtering is required on one or both sides. Keep the supplied construction connected to the application drawing. A filter-faced net should not be accepted as another configuration solely because both offers use the word geocomposite.

Assess the core's flow duty

Ask for hydraulic data with test conditions and exact product identification. Provide the expected installation context for project review. A reported flow value needs interpretation for the relevant pressure and gradient. Avoid allowing a satisfactory-looking filter fabric to distract from missing evidence for the drainage core.

Assess the fabric interfaces

Identify the soils or materials touching each filter. Use the relevant property schedule to review openings, flow and mechanical requirements. The filter is not automatically suitable because it is bonded to a drain net. If an alternative changes the fabric, treat it as a component change requiring its own review.

Plan composite connections

Ask how the core and fabrics continue at joints, boundaries and outlets. Price any supplemental materials and define inspection before cover. A site joint may need more than one check because core continuity and filter continuity are distinct. Include cut pieces and penetrations in that inspection plan.

Compare complete offers

Send Suneco New Materials the required composite section and component data schedule. Record installation and accessory exclusions. The accepted offer should identify an assessed core-and-filter combination, making it easier to compare with bare-net alternatives without omitting the layers needed for the same drainage arrangement.