Webinar- Lunchtime Learning: Stone Façade Restoration

  • Date

    Friday, August 21 2020

  • Time


  • Location


The restoration of a stone façade, whether it is a marble monument or a limestone-clad office building, is not a straightforward scope that easily fits into the typical design and construction process. Simply put, it is not a discipline or process that is “set in stone.” Not only are restoration techniques constantly evolving, which is challenging to describe in architectural specifications, but the assessment and documentation of potential repairs is not fully possible until temporary access like scaffolding is erected, which presents a challenge during construction from both a budget and schedule perspective. This presentation will provide an overview of basic cleaning and restoration techniques; how these techniques have evolved over the past decade due to new technologies and scientific research; and potential solutions to better integrate façade restoration scopes into the design and construction process.

Presented by: Constance Lai, FAIA, NCARB, LEED AP BD+C

Constance Lai is the Manager of Historic Preservation Services for Grunley Construction. She has over 17 years of experience in historic preservation and has worked on the Eisenhower Executive Office Building, the Washington Monument, the U.S. Capitol, DC’s Carnegie Library, Smithsonian’s National Museum of Natural History, the Jefferson Memorial, and many others. She is currently working on the US Chamber of Commerce Building by Cass Gilbert. She is a board member of the AIA Architects Foundation where she is an advocate for the Richard Morris Hunt Prize; the Diversity Advancement Scholarship; and The Octagon, the home of the Foundation. She is also a board member of the Association for Preservation Technology DC Chapter and a board member of the National Preservation Institute.

Sponsored by: Grunley Construction

At the completion of this course, participants will be able to:

  • Understand basic cleaning and restoration techniques for stone structures;
  • Summarize how the restoration of a stone façade can be better integrated into the design and construction process;
  • Describe new technologies and new scientific research in stone preservation and how these new developments have influenced the discipline; and
  • Describe recent developments in the evolution of means and methods of stone restoration techniques.