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Since 1995, VERTEX has completed over 90,000 projects.

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VERTEX is looking for talented individuals to join a highly technical team of forensic consultants, design engineers, construction managers, and environmental scientists.

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VERTEX is a multi-discipline firm with global coverage. Our international network of resources enables us to provide multi-national clients with the most qualified local professionals who understand the culture, language, and regulatory framework.

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Call us at 888.298.5162.

Rob EzoldPE

Senior Forensic Mechanical Engineer, Forensics

Mr. Ezold is a senior mechanical engineer with over 35 years of experience including expertise in central chilled water plant (variable primary and primary-secondary) and central steam plant (Biomass, Natural Gas, Coal, and CHP), design, operations, maintenance, and water treatment. Mr. Ezold has extensive retro-commissioning field experience with the optimization of building mechanical systems including VRF, HVAC, chilled water, hot water, steam, compressed air, submersible pumps, centrifugal pumps, vertical turbine line-shaft pumps, air and water balancing, and Direct Digital Control. Forensic investigation experience includes weld quality control and weld failure analysis, evaluating mechanical, electrical, and plumbing (MEP) failures in commercial and residential mechanical building systems, industrial plants, food processing plants, hospitals, and educational facilities. Mr. Ezold is a licensed professional engineer in 50 states, the District of Columbia, and is an active member of both ASHRAE and AEE.

Education & Certification

B.S., Mechanical Engineering, University of Rhode Island

Professional Engineer (PE) – Mechanical, State of AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY

HAZWOPER – 24 hour


Galvanization for Corrosion Prevention Short Course, 2008 AISC
ASHRAE Retro-Commissioning Short Course, 2011 Winter Conference in Orlando, FL
University of Alaska Anchorage – ES AC030 Fundamentals of Arctic Engineering, 2023


American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE)
Association of Energy Engineers (AEE)

Areas of Service

Forensic Engineering

Expert Witness Services

Forensics Technical, Mechanical

Forensics Technical, Plumbing

Standard of Care, MEP