J&M has developed an innovative concrete paving system in response to designers’ goal to integrate the environmental benefits of LEED®-friendly pervious concrete with the aesthetics of architectural concrete paving. J&M call’s this new product PoroPave® Permeable Concrete Paving. This two-part concrete system consists of a decorative concrete topping layer that is bonded to the pervious concrete subslab below. Surface water is then directed to the pervious concrete subslab below via saw-cut joints cut completely through the architectural concrete topping layer and partially into the pervious concrete layer below. As a side benefit, PoroPave® reduces or even eliminates costly and unsightly area drains and related subsurface drainage infrastructure thereby allowing the finished slab to be constructed at or near a dead-level grade.