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Norman R. Weiss

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Adjunct Associate Profesessor of Architecture, Planning and Preservation
+1 212 541 9159

Norman R. Weiss is a technical specialist in the analysis and preservation of traditional building materials. Trained as an analytical chemist, he is recognized for his activities in the field of masonry cleaning and repair. He has worked on hundreds of stone, brick, terracotta and concrete buildings, principally in North America. Among his best-known projects are the west front of the United States Capitol, New York’s Trinity Church, and Frank Lloyd Wright’s masterpiece, Fallingwater. His most current research is in the chemical treatment of limestone and marble, and the development of novel lime-based mortars and paints. He has taught at Columbia since 1977, and has been a visiting faculty member at New York University and the University of Southern California. Prof. Weiss is a Fellow and Life Member of the Association for Preservation Technology, a member of the PTT Board of the National Park Service, Vice President of MCC Materials, Inc., and Senior Scientist of Integrated Conservation Resources, Inc. 
 
Recent co-authored publications include: 
“Development and assessment of a conversion treatment for calcareous stone,” in Vol. 2, Proceedings, 9th International Congress on Deterioration and Conservation of Stone. Amsterdam: Elsevier Science, 2000. 
 
“Fallingwater Part 1: materials-conservation efforts at Frank Lloyd Wright’s masterpiece,” APT Bulletin, XXXII (4), 44-55 (2001). 
 
“Replication of historic masonry mortars,” US/ICOMOS Scientific  Journal, III (1), 12-13 (2001). 
 
“Conserving the ruins of a Hellenistic farmhouse in Crimea, Ukraine,”APT Bulletin, XXXIV (2-3), 5-14 (2003). 
 
“A review of selected inorganic consolidants and protective treatments for porous calcareous materials,” Reviews in Conservation, 4, 13-25 (2003).