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All Categories > Expansion Joint / Specialty Roof Systems > Green Roof Drainage Components > J-Drain / JDR Enterprises  

J-Drain / JDR Enterprises

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J-Drain GRS Pic

J-Drain GRS Green Roof Drainage System

A high strength pre-assembled drainage composite consisting of a dimpled core and two layers of geosynthetic fabric attached top and bottom. The dimpled core has water retention chambers for storing water while allowing excess water to pass through “perforations”. (1 in. dimple height).
J-Drain 400 RB Pic

J-Drain 400RB Drainage Mat

Consists of a impermeable polymeric sheet cuspated under heat and pressure to form a high flow dimpled drainage core.  The core is then bonded to a layer of root resistant filter fabric.