Day two at Greenbuild 2011 brought new materials and technologies to advance sustainable building. Among them: CertainTeed launched the Apollo Photovoltaic Solar Power Roofing System and its expanded AirRenew gypsum board line; GE Energy Industrial Solutions introduced its solar-powered, vehicle-charging carports; and Otis Elevator previewed its upgraded NCE escalator featuring LED lights, power standby features and high-efficiency lubrication.

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