Much of the older roof construction in Philadelphia is identical to the older roof construction in Coatesville. What works in Philadelphia's older construction will work in Coatesville.
“WelcomeGreen roofs offer big benefits for the environment. Made of layers of lightweight, absorbent material and covered with tough perennial plants, they retain large quantities of rainwater, reducing runoff that contributes to flooding and water pollution.PECO has partnered with PHS to manage the 45,000-square-foot (more than one acre) green roof at its Center City Philadelphia headquarters. The , which includes a viewing area and stunning city views, is open to the public to showcase the merits of green roof technology. for tour information.”