William R. Acorn, PE, FASHRAE Expert Witness
Curriculum Vitae

Contact Information

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Specialties & Experience

General Specialties: Engineering and HVAC

Specialty Focus: HVAC and Refrigeration, Process and Power Piping, Plumbing Systems, Standard of Care in Design and Construction, Chemical Exposures in the Workplace, Cleanroom Design and Performance, Codes and Standards, Patent and Trade Secret Disputes, Data Centers

Education: BSME, University of Arizona

Years in Practice: 40

Number of Times Deposed/Testified in Last 4 Yrs: 7


Additional Information

William R. Acorn is founder of Acorn Consulting Services, LLC, an engineering firm. As a consulting mechanical engineer, Bill provides project analysis, forensic reconstructions and litigation support services relating to the design, delivery and functioning of high-tech manufacturing facilities, semiconductor fabrication facilities, institutional laboratories, data centers, health care facilities and a variety of commercial buildings. He is a recognized expert in the evaluation of deficiencies in HVAC systems, cleanrooms, piping systems, refrigeration systems, construction defects and building and fire code compliance. He represents both plaintiffs and defendants. Bill has more than 40 years of experience as a professional engineer and owner's agent and is a recognized expert in assessing, evaluating, remediating and providing testimony on complex project design, construction and operational matters. His consulting expertise has been influential in shaping approaches to code compliance and life safety in semiconductor and similar advanced technology facilities.