How do dimples help control underground water movement?

Dimples create a structured space between the drainage board and the installed surface. When groundwater reaches this layer, it can travel through the available channels towards a suitable collection or discharge point. This movement helps prevent excessive water from collecting around underground structures. The raised pattern also provides separation between the soil and the wall, reducing direct contact with accumulated moisture. Depending on the design, a geotextile filter layer can be used to prevent soil particles from entering and blocking the drainage channels. This is particularly useful in areas where surrounding soil contains fine particles or experiences frequent water movement.
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