Granular lightweight aggregate that creates a sustainable root environment by retaining and draining water in a natural way. Depending on project specific requirements, additional drainage elements or drainage layers can be used to increase horizontal flow rate. It can also be used as a bedding material for pavers or patios within a green roof area.
rooflite drain is a product line that is available in different saturated weight classes. These weight classes are designed to guide you in choosing the best option for your project based on your weight requirements. Each weight class is identified by a number that corresponds to the typical weight for fully saturated media based on ASTM E2399. Depending on your specific region, the following weight classes are available for rooflite drain:
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