About the Firm
Welcome to ELT & Associates. We are a Structural Engineering firm
established 1984 specializing in structural design, retrofit, and analysis
of adobe, rammed earth, brick and wood buildings. Furthermore, we
have detailed knowledge in the area of seismic testing of adobe
construction including experience with earthquake simulator shake
table tests on adobe structures, dynamic analysis, finite element
analysis, and laboratory and field tests.
Roy Tolles, President
About Mr. Tolles.
  • Ph.D. in Structural Engineering from
    Stanford University
  • Registered California Professional
    Engineer (P.E.)
  • 25 years experience in the seismic
    design, research and investigation of
    buildings primarily in California
  • Member of the Structural Engineers
    Association of California and the
    Earthquake Engineering Research
Areas of Expertise

New Construction


Other links
ELT & Associates
Seismic Engineering of Earthen Buildings
Serving California and the World Since 1984
Telephone: (510) 295-4299
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