The Preservation Trades Network Presents the 20th Annual International Preservation Trades Workshop on September 9-11 2016 at Clermont Farm, Berryville, Virginia. The International Preservation Trades Workshop (IPTW) has been occurring annually, since 1997, bringing together a diverse group of trades people, including masons, timber framers, carpenters, painters, roofers, plasterers, metal workers and others to share knowledge and demonstrate skills.  The attendees are a diverse group of tradespeople, architects, preservationists, and students, all seeking learning and networking opportunities available nowhere else. More to come.