WJE is a global firm of engineers, architects, and materials scientists that specializes in the investigation, analysis, testing, and design of repairs for historic and contemporary structures. Since the firm's founding more than sixty years ago, WJE has focused on delivering practical, innovative, and technically sound solutions across all areas of new and existing construction. Our state-of-the-art laboratory and testing facilities and collective experience are brought to bear on every project, helping clients solve, repair, and avoid problems in the built world. Practice areas include roof consulting, masonry conservation, structural engineering, metallurgy, building enclosure commissioning, historic preservation, and fire protection and life safety, among others. For more information, please visit WJE.com.
Jeff Levine is a roof consultant specializing in existing steep-slope and low-slope roofing, including slate, tile, wood shingles, copper, modified bitumen, EPDM, and liquid-applied membrane waterproofing systems. Jeff is a founding Director of NSA, Chair of its Installation Standards Committee, and co-author of its Slate Roofs Design and Installation Manual.