Materials, Part 2 – Examples in Sourcing and Repairing California’s Historic Stone Architecture

Special Offer: Register for the three-part materials series (Wood, Stone, and Glass) and receive all three for $140 or $95 for members).

From castellated wineries, to downtown newspaper citadels and modernist desert escapes, the varieties of stone used in California architecture is as varied as its architectural styles.  What happens when repairs are needed, including the replacement of original stone components? This 90-minute webinar will cover the origins and variety of stone used in California’s architecture historically and it will review the challenges overcome by experts, including architectural historians, stone masons, suppliers, conservators, and contractors. How can stone facades and building elements be properly maintained, restored, and analyzed. Our panel will use case examples to provide lessons learned.

You will be able to...

  1. Describe the variety of natural stone that has been used in Californian architecture historically.
  2. Explain why it is necessary to carefully source replacement stone.
  3. Identify the available resources for sourcing replacement stone.
  4. Compare stone materials and identify the key factors in material selection.


  • Alice Custance-Baker, Historic Building Materials Conservation
  • Michael Courtney, President of the Masonry Restoration Division of Giampolini & Co.
  • Stephen Clarkson, Zone Manager, Stanford University
  • Sapna Marfatia, Director Of Architecture, Stanford University