Explain the Permeable Base Layer and Drainage Principle
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What happens here
The video proceeds to detail the underlying structure of the permeable grass driveway, referencing an 'Installation Guide' schematic for visual support. It explains that the foundation, or base, of this system consists of a layer of 'clear 3/4 inch stone.' This specific granular base is engineered to be highly permeable, allowing stormwater to 'freely go down into it,' 'travel through it,' and ultimately 'percolate down into what is the subgrade.' This design mimics a permeable patio, ensuring efficient water drainage.
Goal: Comprehend the composition and function of the granular base layer for effective water drainage.
Tools and materials
- Installation Guide Schematic — Serving as a visual aid for explaining the driveway layers and their functions
- Laptop/Computer — Displaying design schematics
- 3/4 inch Clear Stone — Creating the permeable base layer that facilitates drainage