Eco Heroes: A green roof on Black Rock

Eco Heroes: A green roof on Black Rock

See the largest and tallest green roof in New York City -- installed for the same price as a regular roof. Learn how solar film and better equipment maintenance help reduce CBS Corporation's energy consumption in this EcoMedia video.

Editor's Note: EcoMedia and SmartPlanet are part of CBS Corporation.

This post was originally published on Smartplanet.com