Double-sided composite drainage geonets need clear descriptions of both fabric faces. double sided composite drainage geonets should be assessed for the materials contacting each side as well as for the core's drainage duty. Two filters do not automatically make a product suitable for every surrounding soil arrangement.

A proposal based on geotextile composite drainage geonets may have a different fabric configuration. Confirm that difference before comparing quotations. This article focuses on face identification and joint details so that the installed composite matches the layer arrangement accepted by the project reviewer.

Name each interface

Show the material touching the upper and lower faces, or each side in a vertical arrangement. State the required filter properties for those contacts. Identical-looking fabrics can still require different assessment at different interfaces. Keep orientation and layer descriptions visible in the installation section rather than assuming two-sided construction makes direction irrelevant.

Check the exact supplied faces

Ask whether both fabrics are the same grade and how they are attached. Record the core and composite designation. Data for another configuration should not be transferred automatically. If the supplier proposes a one-sided or otherwise changed product, identify it as a construction alternative before any price comparison.

Inspect every joint function

Obtain details for core continuity and both fabric connections. Review edges and cuts where one face may be difficult to reach after placement. Include the accessories required to complete those details. The inspection plan should check the functions separately rather than accepting the joint only because one visible fabric overlaps neatly.

Maintain the outlet route

Show how the composite reaches a collector and how filters are treated at that transition. Water should have a defined exit without losing the specified soil interface. Coordinate access and debris protection before cover. A double-sided label does not resolve a missing collector detail.

Issue a face-specific order

Send Suneco New Materials the core requirements, two fabric schedules and connection arrangement. Ask for exact-model evidence and consistent identification. This allows the purchaser and installer to distinguish a defined double-sided composite from another geonet that merely has similar overall dimensions.