Drainboard

A Drainboard is a pre-formed, high-strength drainage solution designed to manage excess water in structural and landscaping applications. It is commonly made from high-density polyethylene (HDPE) and features a dimpled or cuspated core that creates an air gap for effective water flow. Drainboards are typically installed behind retaining walls, basement walls, planter boxes, podium gardens, and under green roofs to prevent water accumulation and hydrostatic pressure.

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