Drain Plates

Drain Plate 25 is a 1” (25 mm) tall, three-dimensional plastic drainage structure for green roofs made of high-density polyethylene. Unlike flexible drainage sheets made of thin plastic, this is thick, semi-rigid, high-strength product designed to last a lifetime and to withstand heavy pedestrian traffic. Precision molding makes it possible to cleanly overlap adjacent sheets.

Drain Plate 40 is a 1-½” (40 mm) tall, three-dimensional plastic structure for green roofs made of high-density polyethylene. Cavities on the upper side provide a small amount of supplemental water storage, while passageways on the underside provide high-rate storm drainage. Small holes at the middle of the sheet height assures there is always an air gap between the filter mat and water, preventing waterlogged soil.

Drain Plate 60 is a 2-1/2” (63.5 mm) tall, three-dimensional plastic structure for green roofs made of recycled high-density polyethylene. Typically the entire top surface is filled with a lightweight inorganic aggregate to support the separation fabric and planting media above.

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