Product Guide Green Roof Systems Solar panels on green roofs, like these in New York City, can operate more efficiently because the surrounding air is cooled by plants Photo: Green Roof Technology Behind the recommendations Related articles Behind the recommendations Related articles Green Roof Systems Planting media and packaged green roof systems that can be created from regional materials and custom blended More about Green Roof Systems New Standard for Green Roof Membranes Green Roof Study Finds Big Variation in Stormwater Retention "Blue Roof" Adds Stormwater Detention Alongside Green Roof in New York Green Roofs Improve Solar Panel Efficiency For a Low-Maintenance Green Roof, Give Plants Better Soil Inventors of the WaterGrip growing medium say it supports near-miraculous growth—but do their claims hold as much water as their soil? Putting a “LID” on Harmful Stormwater Runoff Low-impact development (LID) minimizes pavement and maximizes rainwater infiltration, filtering out pollution and preventing erosion.