Installation Procedures and Solutions for Specific Paver Applications
Permeable Paver Application
Permeable pavers make it possible to have an attractive surface suitable for pedestrian and vehicular traffic while minimizing the impact of rainfall runoff on storm drains and the surrounding environment. Where most paved surfaces are impervious and create immediate, contaminated runoff during rainstorms, permeable pavers allow runoff to flow between the joints of the pavers. The base layer of the paving system delays, filters, and cleans the runoff before it passes into the ground water table or into the storm drain system.
Watch the permeable paver test video below. More information available in Sustainable Design section.
Download Angelus Permeable Pavers Fact Sheet
Diagram Key
- A Edge restraint - concrete depth below bedding rock
- B Joint rock - 1/8" - 3/8" crushed rock (no fines)
- C Permeable paving stone has spacers or void spaces to allow water flow
- D Bedding rock - 2" thick layer, No. 8 stone
- E Base rock - depth varies, No. 57 stone open-graded
- F Subbase rock - depth varies, No. 2 stone
- G Geotextile - filter fabric for full or partial exfiltration; liner for no exfiltration
- H Drain pipe - as needed for partial or no exfiltration
- I Non-compacted native soils
Frequently Asked Questions
What is the role of the Permeable Pavers?
Can Permeable Pavers be used on driveways, walkways or roads?
Is the base material important?
What type of material is used for the base?
What is the Geotextile and is it necessary?
Is the bedding sand used in Permeable Pavements?
What material is used in the voids or joints?
Is an edge restraint important?
Is maintenance required for Permeable Pavers?
PICP Quantity and Quality Control Design Types
FULL EXFILTRATION
Quantity and Quality Control
- Results in no runoff of stormwater
- May also capture building roof runoff
- Recharge ground water
- Minimizes stress to stormwater systems
- Filters water
- Cooler pavement
PARTIAL EXFILTRATION
Quantity and Quality Control
- Minimizes runoff - may equal predevelopment level
- Slows and delays water entering storm system
- Filters water before releasing to storm system or natural streams
- Cools water before releasing to environmental waters
- Cooler pavement
NO EXFILTRATION
Quantity and Quality Control
- Slows and delays water entering storm system
- Filters water before releasing to storm system or natural streams
- Cools water before releasing to environmental waters
- Cooler pavement
Permeable Paver Test
Watch as 2000 gallons of water is spilled upon SF Rima permeable paver. The torrent of water pours for 9 minutes with zero runoff. Compare that to the typical hard surface runoff also shown.
Demonstration by Pacific Outdoor Living; used by permission.