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

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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).

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JDGRS.SF J-Drain GRS Green Roof Drainage System 200 Square Foot Roll Per Square Foot 88 lbs per Roll
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