A YWCA in Pittsburgh will get a $1.1 million green roof, thanks in part to charitable contributions. The Richard King Mellon Foundation provided $125,000 and the Eden Hall Foundation gave $50,000, raising the total amount from foundations to nearly $400,000. Three other downtown Pittsburgh buildings already have green roofs. "We want an environmentally responsible green roof," said Carmelle Nickens Phillips, a vice president at the YWCA. "It provides a lot of benefits -- a longer material lifespan, energy savings, sound insulation, and it's really compatible with the neighborhood."

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