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Primary Area of Expertise

HVAC Engineering

Expert Witness Profile

William R. Acorn is principal and founder of Acorn Consulting Services, LLC. As a consulting mechanical engineer specializing in the built environment, he provides project design and management, mentoring and advanced training, forensic analysis and litigation consulting, and expert testimony at legal proceedings.

Since graduating “with distinction” with a BSME degree from the University of Arizona and obtaining licensure as a Professional Mechanical Engineer, Mr. Acorn has accumulated more than 45 years’ experience as a consulting engineer. He is an internationally recognized authority on assessing, evaluating, conceptualizing and remediating complex project design, construction and operational issues related to mechanical systems in buildings. His expertise includes HVAC systems, cleanrooms, plumbing piping and refrigeration systems; and building and fire code compliance. Facility types include commercial office buildings, healthcare facilities, institutional laboratories, data centers, and clean manufacturing facilities for semiconductor and related advanced technology industries.

Education & Licenses

BSME University of Arizona, Professional Mechanical Engineer (P.E.): Arizona, California, Colorado, Illinois, Iowa, New Hampshire, New Mexico, Nevada, Oklahoma, Oregon, Texas, Utah, Washington
NCEES: National Council of Examiners for Engineering and Surveying, Certificate 6999
DFE: Board Certified Diplomate in Forensic Engineering granted by the National Academy of Forensic Engineers (NAFE)
FASHRAE: “Fellow” in the HVAC industry-leading American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
CFLC: Certified Forensic Litigation Consultant through the Forensic Expert Witness Association