Campbell Center Maintenance Workshop, Follow Up II. In June Bob Yapp and John Leeke taught a course on maintenance methods and materials for historic buildings. Many National Parks Service workers attended as well as others involved in caring for historic buildings. This video is a quick review of wood-epoxy repairs, with the completion of the repair started during the workshop. More about the Methods and Materials for Maintenance of Historic Buildings course: http://www.campbellcenter.org/pages/historic.html#maintenanceMore about the Campbell Center for Historic Preservation Studies: http://www.campbellcenter.org/index.htmlMore about John Leeke and Historic HomeWorks: http://www.historichomeworks.com/hhw/index.htmMore about Bob Yapp and Preservation Resources, Inc.: http://www.bobyapp.com/ Less