Geocomposite
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The geocomposite material (G100N) is designed to provide a reduction of hydrostatic pressure which is typically built up agains underground surfaces. The material has a “dimpled core” which provides up to three times the drainage capability of rock or sand can be used in a wide variety of different applications in both vertical or horizontal orientations. The high strength core provides the geocomposite the ability to retain its dimensional strength in high pressure installations. On the back side of the material is a layer of non-woven geotextile which keeps dirt and other debris from entering the drainage channel. The G100N is available in 4’ x 50’ rolls and ships from either Georgia or California depending on current stock levels.
Geogrid Specifications: Download Mirafi G100N Specification Sheet
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This fabric is produced in the state of Georgia, USA and can meet Build America / Buy America (BABA) requirements when requested. If ordering this fabric for a BABA project be sure to indicate that a BABA fabric is required in the “order message” field on the cart page.
***This is a discontinued product. View the stocked Mirafi G200N >
Why Choose Mirafi G100N?
5 reasons engineers specify Mirafi geocomposite drainage over generic alternatives
Integrated Composite Combines Filter Fabric & Drainage Core
Engineered drainage composite eliminates the need for separate aggregate drainage layer and filter fabric — reducing installation complexity.
Engineered Flow Capacity Tested Per ASTM Standards
Transmissivity and flow capacity are tested and published per ASTM standards — providing the engineering documentation required for project acceptance.
Simpler Installation Than Aggregate Drainage Systems
Pre-assembled composite installs in one step vs separately placing drainage aggregate, filter fabric, and backfill — reducing labor and installation time.
DOT-Specified for Prefabricated Drain Mat Applications
Mirafi G-series drainage composites appear on state DOT specifications for prefabricated drain mat applications.
USA-Made, BABA Eligible
Manufactured in Georgia — qualifies for Build America / Buy America requirements on federally funded drainage projects.


