Matthew’s practice at SGH has focused on investigating and diagnosing the causes and consequences of building enclosure and structural problems in historic buildings (both traditional and modern), and designing sensitive and appropriate repairs, restorations, and rehabilitations to solve those problems. He has led SGH’s enclosure investigation and restoration design efforts on numerous highly significant buildings, including Frank Lloyd Wright’s Zimmerman House, Skidmore Owings and Merrill’s Beinecke Rare Book and Manuscript Library at Yale University, Josep Lluis Sert’s Peabody Terrace Graduate Student Housing at Harvard University, and H.H. Richardson’s Hampden County Courthouse. At our in-house laboratory, Matthew has supervised the analysis and testing of historic building materials, including mortar, stone, slate, and clay roofing tile. He has written and lectured extensively on historic preservation, from technical issues pertaining to the inspection and condition assessment of historic buildings to philosophical issues relating to international preservation standards and charters.