If you’ve not heard about pervious concrete, essentially concrete paving that allows rainwater to passthrough it rather than create stormwater runoff problems, check out this website: Pervious concrete, when it rains it drains. Unlike many “green” claims, this one is legitimate and will likely play a bigger role in the future of construction. Contractors whoinstall pervious concrete for their clients rack up some nice LEED points, which is something hospitals, governments and other institutional builders are increasingly requesting.