Joseph Jenkins authored the Slate Roof Biblein 1997. He is also the founder and executive director of the nonprofit Slate Roofing Contractors Association of North America, Inc., which is a member of the International Federation for the Roofing Trades (IFD). When he isn’t providing consulting services or contracting work as the president of Joe Jenkins Inc., he conducts presentations about slate roofs throughout the country and internationally, as well as on radio and TV. He spoke to Roofing Contractorabout his presentation for the 2012 IRE.