Percoa-Pre-cast pervious Concrete is specialized concrete containing reduced sand or “fines” which allows water to drain through it.
Properly installed Percoa will
* reduce storm water runoff volume
* reduce storm water runoff rate
* reduce storm water pollutants
* reduce storm water erosion
Pervious concrete, has been in use for approximately 150 years, it was not until 20 years ago that it was successfully employed in various applications in the United States (American Concrete Institute 2006). Communities have found many ways to incorporate pervious concrete into practice; such as tree protection, stormwater runoff reduction, and increased pervious area on a site (Offenberg 2005a).
SOURCE; Michael Davy
Water drains through it. It’s like a rock sponge! Percoa looks like a Rice Krispy bar or piece of natural pumice
Properly constructed Percoa surfaces are durable, low maintenance, and have a low life cycle cost.
Because of its unique properties, Percoa is rapidly gaining acceptance worldwide as an effective means to combat the damaging effects of storm water runoff and reduce pollution.