Mr. Worster has twenty years of experience in the investigation, design, and construction phases of building enclosures. His projects include the historic and the contemporary, ranging from terra cotta to titanium panels. He assists owners, designers, and builders with traditional and modern waterproofing, roofing, and wall claddings. Mr. Worster holds an advanced degree specializing in structural materials, and he enjoys teaching his expertise. He is the ASTM task group chair for fenestration water testing and is on the Board of Directors for the California Preservation Foundation.