Open-grid paving is different from porous paving—Open grid paving is laid out in a pattern that exposes areas of the ground allowing vegetation to grow in the open cells.  Porous paving is continuous paving that allows water to penetrate it minimizin

Open-grid paving is different from porous paving—Open grid paving is laid out in a pattern that exposes areas of the ground allowing vegetation to grow in the open cells.  Porous paving is continuous paving that allows water to penetrate it minimizing runoff.  Porous paving alone without an open grid will not help you earn the credit, as you need the vegetation and its associated evapotranspiration help mitigate the heat island effect. Porous paving can qualify as a light colored material, however, if it has an SRI of 29 or higher.