Definition
Pervious surfaces are mainly natural surfaces that allow water to percolate through to the area underneath rather than becoming runoff.
Layer details
AI Packs | Surface Permeability |
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| Status | Production |
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| Includes | - Hard/compact dirt and gravel
- Pervious surfaces not at ground level such as a rooftop garden
- Synthetic grass such as Astroturf
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| Excludes | - Potted plants
- Tree overhang on hard surfaces; for example tree overhang on buildings, asphalt or concrete surfaces
- The area inside swimming pools
- Polymeric surfaces
- An extensive area of flat hard rock where tree or plant roots cannot grow
- The area under decks, balconies, and the attaching staircases
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Product-specific Terms | |
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Examples
