A drainage cell is a lightweight, modular structure designed to create a controlled pathway for water flow beneath surfaces in construction and landscaping projects. Typically made in interlocking panels, drainage cells form a continuous layer that allows excess water to move freely away from the surface. This system works by creating a void space between the ground and the overlying layer (such as soil, concrete, or paving), enabling water to flow efficiently toward designated drainage outlets. By facilitating proper water movement, drainage cells help prevent water accumulation, reduce hydrostatic pressure, and maintain the stability of structures. They are commonly used in applications such as green roofs, retaining walls, podium decks, and basement waterproofing systems.
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