J-DRain GRS

Green Roof Prefabricated Drainage Composite

J-DRain GRS is a composite drainage system consisting of 100% post industrial polystyrene regrind dimple core and two layers of geosynthetic fabric attached top and bottom. One layer of fabric is root resistant  to most typical greenroof plants. It is not a replacement for the required root barrier.

PROPERTY TEST METHOD ENGLISH METRIC
Compressive Strength - Core ASTM D-1621 9,500 psf 455 kN/m2
Thickness - Core ASTM D-1777 1 in 25.4 mm
Flow - Core ASTM D-4716 30 g/min/ft width 371 L/min/m
Grab Tensile - Fabric ASTM D-4632 100 lbs .45 kN
ROLL SIZE AREA WEIGHT
4' x 50' 200 SF 88 lbs