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Mapedrain 20

High-Strength, High-Flow, Prefabricated Drainage Composite

Mapedrain 20 is a high-strength, three-dimensional drainage composite. It consists of a nonwoven filter fabric bonded to individual dimples of a molded polypropylene core, minimizing fabric intrusion into the drainage channels caused by overburden pressure. The filter fabric allows water to pass freely into the drainage core, which provides hydrostatic relief while preventing the passage of soil or sand particles that might clog the core.

Lightweight and easy to install, Mapedrain 20 provides cost savings and eliminates the need for aggregate backfill.
Mapedrain 20 also serves as a protection course for MAPEI waterproofing membranes. Contact a MAPEI representative for specific guidelines.
Mapedrain 20 high-flow drainage provides up to three times the flow capacity of aggregate or sand.
Mapedrain 20’s high compression strength withstands backfill pressure.
Mapedrain 20 channels water away from installed waterproofing systems.
Native soils can be used over Mapedrain 20.
Geotextile filter fabric ensures no-clog drainage by preventing intrusion of soil, concrete or construction grout into the flow channels.
Unaffected by permanent immersion in water, bacteria, dilute acids and alkalis, Mapedrain 20 will not deteriorate when exposed to these conditions.
Mapedrain 20 offers below-grade relief of hydrostatic pressure against foundation and retaining walls, when connected to a passive gravity drain or operational sump pump.
The efficiency-oriented volume packaging of Mapedrain 20 allows 7 rolls per pallet.
The drain core is 40% post-industrial recycled polypropylene material.