The term “porous” refers to holes in the asphalt material that provides a way of managing storm water or drainage challenges. Porous material is most often used for parking lots to allow water to drain through the surface and be infiltrated into the soil below the pavement. Not only a low-maintenance option for homes and businesses with drainage problems; porous has also been an ideal option for municipal projects that face recent storm water regulations. Common uses include sidewalks, driveways, fire lanes, road shoulders and roadways.