Granular Drainage Medium
Roofscape® Granular Drain is a granular drainage medium for extensive, semi-intensive and intensive Greenroof-Roofscapes® assemblies, as well as for planters and containers, designed to retain stormwater and to provide horizontal drainage, and which meets the requirements described in ASTM E2777-14 Standard Guide for Vegetative (Green) Roof Systems.
Roofscape® Granular Drain is a granular drainage medium for extensive, semi-intensive and intensive Greenroof-Roofscapes® assemblies, as well as for planters and containers, designed to retain stormwater and to provide horizontal drainage, and which meets the requirements described in ASTM E2777-14 Standard Guide for Vegetative (Green) Roof Systems and detailed below.
Roofscape® Granular Drain is a precisely balanced blend that consists of all lightweight mineral aggregate.
WEIGHT CLASS:
Roofscape® Granular Drain is available in different saturated weight classes. These weight classes are designed to guide you in choosing the best option for your project. Each weight class is identified by a number that corresponds to the typical weight for fully saturated media based on ASTM E2399.
