The reversible pavers don't expand in hot weather, and they absorb and retain less heat than concrete. The system has been freeze-thaw tested according to ASTM C1026 with good performance characteristics exhibited, and is also ADA compliant for pedestrian and wheeled traffic. While the pavers aren't considered porous themselves, the system provides immediate drainage at the module seams.Washington, D.C. tested it last year and found that, although it costs more initially, the rubber sidewalks will save money, trees, and resident complaints, and it won't have to be replaced for about 14 years - 3 times as long as concrete. Part of the high cost is due to the fact that the company is located in California, so shipping is a big factor. They are hoping to open a New York location to spread the goodness.
cool off: Drink cool liquids and eat cool meals during the upcoming hot & humid weather.