Talk Philly: Certainteed

<span style='color: black; line-height: 115%; font-family: "Arial","sans-serif"; font-size: 10pt;'><font size="3" face="Times New Roman">Through the responsible development of innovative and sustainable building products, CertainTeed, headquartered in Valley Forge, Pa., has helped shape the building products industry for more than 110 years.</font></span>