William “Bill” Foley has worked in the construction industry for over 25 years. In June 2014, Bill re-joined ZinCo-USA as their Mid-Atlantic Regional Manager. Previously he worked with ZinCo-USA as an independent representative in 2006-8. Bill promotes water and energy efficient design employing green roof infrastructure, combined green roof photovoltaic systems and other technologies related to sustainable infrastructure. He has authored several articles appearing in Applicator magazine (published by the Sealant Waterproofing Restoration Institute), Interface magazine (Roofing Consultants Institute) and the Living Architecture Monitor. Since 2003, Bill has been directly involved in the advancement of green roofing through project specification, design consultation and installation oversight. In 2009, Bill earned certification from the North American Board of Certified Energy Practitioners (NABCEB) in PV Solar. He also passed the Green Roof Professional (GRP) certification test. In 2013, he earned his LEED™ Green Associate designation. His ongoing industry association affiliations include DVGBC, ASLA, Construction Specifications Institute (CSI) and GSI Partners of the Sustainable Business Network in Philadelphia.