Plastic mats with cells: Are usually in the shape of circular or hexagonal cells that allow for planting or porous material between the cells. These reinforcement grids are a mesh that assists you while installing to plant or fill in spaces in between the material, giving the paving a structure. Ground reinforcement grids: Are now available for installing permeable paving. Stone: Flagstone and slate along with other rock can be placed apart with gravel or planting in between. Good for walkways and possibly driveways. Rainwater will easily be able to pass between the small pieces of stone. Typically either decomposed granite or gravel can be loosely packed on top of leveled soil. The clay material will direct water to joints and open spaces.Ĭrushed Stone/Gravel: The least expensive permeable paving material is crushed stone. If you desire to take your sustainability another step further you can use urbanite, or recycled pieces of concrete to create a permeable patio.īrick: Can be used as a porous paver by leaving gaps or spaces between each unit. A unique opportunity exists here for grass or moss to be grown in the cracks, creating a sort of living pavement. This allows water to pass through the openings between each stone or paver. Permeable Paving Types: Dry-Laid Pavers: Installing stones or pavers over a bed of sand and gravel is known as dry laying. Fourth layer: The bottom layer should be a bed of sand.ĭriveway Design - Driveway Ideas with Pavers.Third layer: The third layer is a filter fabric.Second layer: The second layer is the gravel bed.First layer: The top layer is the actual paving material.
Each of these different layers acts as a filtration system to clean storm water. From the top down there are four layers to permeable paving. This paving option doesn’t just look good it’s beneficial to our environment.Ĭonsider permeable paving in large walkways or driveways and make sure that a 6-inch gravel bed is immediately below the porous material. Permeable paving is becoming more popular among home and business owners in the past couple of years due to the innovative methods to save water. These porous materials also filter pollutants and solids from the water as it percolates through the surface. While other non-porous materials direct water to storm-drains, these surfaces help ground water recharge by allowing water to flow into open spaces between the materials. Permeable paving is categorized using many different building materials however, they are all sustainable and allow water to flow through their surface.
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