Mechanical / Plumbing / Piping / HVAC Construction Expert Witnesses: 15

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, building and fire code compliance, and patent and trade secret disputes. He represents both plaintiffs and defendants.

Bill has more than 40 years of experience as a professional engineer 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.

Certifications and Designations:

• Registered as a Professional Mechanical Engineer in the States of Arizona, California, Colorado, Illinois, Iowa, Nevada, New Hampshire, New Mexico, Oregon, Texas, Utah and Washington.
• Registered with the National Council of Examiners for Engineering and Surveying NCEES (Certificate No. 6999)
• Fellow in the HVAC industry leading organization ASHRAE
• Visiting lecturer at the Arizona State University Del E. Webb School of Construction in Tempe, AZ
• Advisor to CREATE, ACE – Alliance for Construction Excellence and the IAB – Industry Advisory Board, all affiliated with ASU

Building Systems Analysis:

Litigation Support: Bill’s pragmatic approach to both forensic and litigation consulting as well as project consulting is based on more than 40 years of real-world experience as a design professional, mentor and forensic analyst, as well as many years as an instructor in professional and academic settings. Represented both plaintiffs and defendants in a variety of jurisdictions throughout the US and Asia. Bill’s ability to explain complex issues to non-technical audiences, including juries, mediators and judges, is a key to successfully solving your litigation challenges.

• Forensic Analysis
• Strategic Litigation Consulting
• Trial Demonstratives
• Expert Testimony

Acorn Consulting Services

Consulting Services: Services range from peer review to conceptual design to development of strategies and programs for expedited project delivery.

Bill frequently acts as an owner’s agent and mentor, functioning as an extension of the owner’s project team. On other projects, Bill serves as a subject matter expert assisting project delivery firms in their development of viable solutions and review of construction documents.

As a project consultant, Bill assures the project gets off to the right start and provides his expertise through completion and operation to maximize return on investment.

Consulting Expertise Includes:

• Project Design and Management Consulting
• Forensic Analysis and Litigation Consulting
• Mentoring & Advanced Education

Dr. Amin Terouhid is a Principal Consultant with Adroit Consultants, LLC. He leads a vibrant consulting practice on Construction Claim matters especially in the areas of delay analysis, loss of productivity, claims for changes, construction defects, and injury cases.

Litigation Support - With extensive experience working on several large and mega construction projects internationally and throughout the United States, Dr. Terouhid is a recognized expert in preparing and investigating construction claims. He has served numerous times (in more than 100 cases) in the capacity of a consulting expert.

Dr. Terouhid is currently (Feb 2022) involved in one international arbitration case for a multimillion-dollar claim in the court of London and three other cases, including a construction delay and loss of productivity claim for a megaproject in New York, a construction injury case, and a slip and fall case in the United States.

Areas of Expertise:

Dr. Terouhid is a Professional Engineer (P.E.) in the states of New Jersey, New York, and Texas and has been examined and certified by Project Management Institute (PMI) as a Project Management Professional (PMP) and Risk Management Professional (PMI-RMP), by the Association for the Advancement of Cost Engineering (AACE International) as a Planning and Scheduling Professional (PSP) and a Decision and Risk Management Professional (DRMP), and by SAVE International as a Certified Value Specialist (CVS). Amin was a recipient of the 2018 AACE International Technical Excellence Award.

Dr. Terouhid is the author of five AACE International recommended practices (RPs) that are used as guidelines with valuable reference information practitioners around the globe.

Thomas J. Young, PE, has over 39 years of experience in national and international Transportation Construction, the Civil Engineering specialty regarding highways, bridges, rail, airports, harbors, and associated infrastructure.

Mr. Young is a skilled integrator of the parameters of program and project life cycles, leadership, management, business operations, engineering and construction. He has extensive knowledge of regulatory compliance, environmental processes, industry standards, best practices, and field operations in urban and remote areas.

Mr. Young has broad construction management and design background for many of the knowledge and skill areas required in mining operations, bridges, highways, land development, major soil/structure type facilities, land survey, and construction surveying, including work in Arctic facilities and in desert regions.

Selected Background Experience:

• Completed 34 bridge structure designs, seismic retrofits, and special studies, including large cut and cover tunnels and numerous other complex structures for the $700 million design/build Eastern Transportation Corridor toll roads in Orange County, California
• Bridge construction oversight on $1 billion Cypress Corridor reconstruction in Oakland, California. 
• $10 million Sunrise/Highway 50, and $40-$50 million Douglas/Interstate 80 Interchange and Corridor designs in Sacramento, California.
• Bridge and highway project development duties in Caltrans Districts 1-5, 7, 10-12.

Thomas J. Young: PowerTeam Interview

Litigation Support - Mr. Young can act as an expert witness in all cases related to Forensic Transportation Construction Engineering. A persuasive communicator skilled at negotiating successful outcomes to complex situations, his expertise at analysis, problem solving, and bringing parties together in the public and private sectors is an asset in his performance in forensic engineering and expert witness testimony.

Areas of Expertise:

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Since 2010, Craig Moskowitz, MBA, MS, PE, the President and Managing Member of CLM Engineering Associates, LLC (CLM), has been concentrating the comapny's focus on forensic engineering/expert witness work for the insurance industry and legal community. In addition, they offer construction management, civil engineering and building inspection services. 

CLM has extensive construction management experience on both commercial and residential projects. Projects have included:

•  Safety inspections on both civilian and military projects through application of OSHA regulations. Designed drainage systems for the government while an officer with the United States military. Cost estimating for various projects exceeding $500 million<li>
• Designed document creation and management of high-rise construction in Manhattan
• Management of telecommunications projects for Verizon in Manhattan including CPM schedule creation and updating
• Directed and managed all water distribution system and sewer system work while working as a contractor to the New York City Department of Design and Construction. 
• Marketplace Services

Litigation Support - Forensic work related to evaluation of structural steel systems with commercial building construction and insurance-related claims due to storm damage on commercial and residential structures. Craig Moskowitz has been deposed several times in litigation matters. Mr. Moskowitz has testified 17 times in the past four years. 

View Craig Moskowitz's Consulting Profile.

Michael A. Pollock, PE, USPTO, is a Mechanical Engineer responsible for the design and engineering of commercial, industrial, manufacturing, institutional, and residential venues, as well as efforts relating to services and products used in and around these facilities. Mr. Pollock's full CV can be viewed at cogentexpert.com.

Business and industries include electronics, safety and construction, building materials, polymers and plastics, instrumentation manufacturing, petrochemicals, chemicals, pharmaceuticals, colleges, athletic facilities, textiles, coatings and resins, food storage, biosciences, supermarkets, inks & pigments, automotive, facility and real estate operations, agricultural, transportation, nuclear, healthcare, nutrition, retail, distributors, pulp and paper, packaging, utilities, apparel, and R&D centers.

Litigation Support - Mr. Pollock is a subject matter expert in Commercial and Industrial Engineering Applications and Projects, as well as engineering standards and applicable codes (ASHRAE, ASME, NIST, NFPA, NBIC, ASTM, SAE, LEED, ASCE, GMP, ISA, BOCA, and EPA Regulations.) He has engaged with local, state, and governmental officials and agencies regarding numerous matters over his commensurate years of experience.

Areas of Expertise:

Registrations

• Professional Engineer: PA (PE075410)
• American Bar Association (ABA) – Construction Forum
• Environmental Protection Agency (EPA) Clean Air Act Certification – Universal (includes Chillers, HVAC & Refrigeration)
• United States Patent & Trademark Office Registered (USPTO)                              

Forensic Consulting Experience

Warehouse Distribution Facility – Maryland - Evaluated a $10M (million) claim relating to purported construction defect claims by the 600,000 sq. ft. facility owner against the facility construction contractor and an original equipment manufacturer relating to installed infrastructure in the facility. Developed an expert opinion and expert report regarding the analysis of the purported defects and a proposed repair solution to correct said defects. 

 Psychiatric Hospital Facility – North Carolina – Evaluated a $28M (million) construction claim by the general contractor against a hospital facility concerning a $100M facility construction project.  Developed an expert opinion and report for general construction issues, constructability, design revisions, and corresponding delay analysis for mechanical, HVAC, electrical, smoke and fire, structural, security and building automation systems. 

Forensics Consulting Work-in-Progress 

• 2022 – International Trade Commission (ITC) Matter – Resin Manufacturing Facility Construction Delay / Completeness Analysis
• 2022 – Mechanical Systems Coatings Matter Analysis
• 2021 – Industrial Manufacturing Facility Standard of Care Matter, Construction Defect, Construction Delay     
• 2021 – Electrical Distribution System Construction Defect Matter, Standard of Care
• 2021 – Hotel Facility HVAC Materials of Construction Related Defect Matter

Joe Scerbo is a distinguished expert witness, construction consultant, and construction management advisor with over 36 years of experience in the construction industry. As a licensed General, Electrical, and HVAC Contractor in California for 25 years, Mr. Scerbo has cultivated specialized expertise in Building Envelope, Mechanical, Electrical, and Plumbing (MEP) systems. His extensive background includes significant experience in mechanical systems, heating & cooling systems, ventilation, solar energy systems, battery energy storage systems (BESS), generators, and design-build projects.

Litigation Support - Mr. Scerbo and his team at Danliv provide comprehensive forensic consulting and litigation support services for all things related to Construction Defects, Standard of Care Issues, Non-conforming of Contractors Licensing Laws, and Cost of Repairs. Serving defense and plaintiff attorneys, insurance companies, and government agencies across the United States. Mr. Scerbo has been disclosed as a designated expert on numerous cases and consulted on over thirty cases for advice as well as field investigations, document evidence evaluation, and material findings. 

Areas of Expertise:

Mr. Scerbo brings extensive expertise across multiple sectors, including single-family, multifamily, hospitality, commercial construction, renewable energy, and utility-scale infrastructure projects. Well-versed in framing, flashing, metal and composite roofing, concrete, exterior cladding systems such as Portland Cement Stucco, underground construction, MEP issues and opines on standard of care for contractors, construction managers, inspection companies and specialty sub-contractor services. He has hired and supervised engineering and design teams for Design-Build projects and Construction Defect cases, ensuring precision and compliance.

David M. Bekus has over 40 years in the Construction Industry specializing in new home construction, and remodeling. Mr. Bekus has been a project manager, overseeing all aspects of construction from conception and approvals to final sales for single homes and developments. Mr. Bekus is licensed by the State of New Jersey as a building inspector (RCS, ICS, and HHS), a licensed home remodeler, and a licensed new home builder. He is also certified in Project Management, Cost Estimating, Construction Methods, Construction Site Safety, and is a EPA Lead Safe Certified Contractor.

Litigation Support - As a seasoned expert in the construction field, Mr. Bekus provides comprehensive reports  and credible expert witness testimony. His services include project evaluations, building code inspections, and clear precisely written reports. Mr. Bekus' expertise is available to counsel representing both Plaintiff and Defendant and has testified in NJ superior court.

Areas of Expertise:

View David Bekus' Consulting Profile.

Robert F. Jalnos is currently a Managing Partner, CEO, and Responsible Master Plumber (RMP, 45 Years) for Dr J Plumbing Contractors, LLC. He has over 45 years of experience as a Licensed Master Plumber in the State of Texas. Mr. Jalnos also currently holds a Master Medical Gas Endorsement, and a Master Multipurpose Fire Sprinkler Endorsement with the Texas State Board of Plumbing Examiners. He is licensed and certified with the Texas Railroad Commission on the installation of LPG Gas Systems.

Qualifications:

• The installations of PEX, PROPRESS, Copper, Steel, Duriron, CPVC Piping. PVC and Cast Iron DWV below and above the foundation, Plumbing site preparation, Sewer, Septic Tanks, Potable Water, Natural and LPG Gas, Medical Gas, Multi-Purposed Fire Sprinkler systems and CSST systems. 
• All types of plumbing installations including Rough In, Slab Water Pulls, Top Outs, Fixture Setting, Sewer installation, Water Service installation, Underground and Above Ground Gas lines, Plumbing Service and Repair, as well as operating machinery for plumbing installations
• Expert Forensic Analysis of system failures
• U.S. Patent Laws pertaining to Plumbing Products
• Uniform and International Plumbing Codes 
• Certified Bathroom Designer (CBD) certified by the National Kitchen and Bath Association
• Certified Green Plumber

Litigation Support - Mr. Jalnos has provided expert plumbing analysis and forensic investigations for the past 20 years. His cases include all aspects of plumbing, materials, installation, workmanship, and problem solving. Mr. Jalnos has been retained in over 75 cases and offers services to attorneys for plaintiff and defendant.

Kiwesa King, PE, CCM, DBIA, PMP, is a construction management consultant and expert witness with nearly 30 years of experience in the vertical construction market. She is a Licensed Professional Engineer and a Certified Construction Manager and Trainer.

Ms. King has managed a range of projects, including restorations, renovations, and ground-up construction. Throughout her career, she has served as an engineer, mechanical subcontractor, general contractor, and construction manager. 

Ms. King leads Expanded Resources LLC, a New York City-based construction management consulting firm. She teaches graduate and continuing education courses in Construction Management at Fordham University and New York University. 

Litigation Support - Ms. King provides expert opinions for cases involving:

Degrees and Certifications:

• New York State Licensed Professional Engineer
• Bachelor of Science and Master of Science in Mechanical Engineering
• Licensed Site Safety Manager by the New York City Department of Buildings
• Certificate of Competence as a Master Fire Suppression Contractor by the New York City Department of Buildings
• Certified as a Construction Manager by the Construction Management Association of America
• Designated Design-Build Professional from the Design-Build Institute of America
• Project Management Professional from the Project Management Institute

View Expanded Resources LLC's Consulting Profile.

Roger W. Griffith, P.E. is a professional Mechanical Engineer with over 40 years of experience in designing, maintaining, and operating mechanical systems (Plumbing, HVAC, and Fire Sprinkler Systems). As the principal of Griffith Engineering & Consulting for 23 years, his design experience with commercial and industrial projects includes convention centers, schools, office buildings, condominiums, apartment buildings, hotels, manufacturing facilities, medical buildings, restaurants, dormitories, fire halls, and maintenance facilities.

Litigation Support - Since 2002, Mr. Griffith has provided thorough, credible, and timely forensic engineering, consulting, and expert witness services. He also assists clients through the mediation and arbitration process. His expert testimony is based upon independent and impartial investigation, research, analysis, and testing. His services include written reports and the preparation of exhibits. Mr. Griffith's expertise is available to plaintiffs and defendants on the issues of plumbing, mechanical, and fire sprinkler system defects and failures. 

His specific areas of expertise include hot water scalding, carbon monoxide poisoning, and legionella. Mr. Griffith has served on numerous codes and standards committees related to areas, including the NFPA 54 Fuel Gas Code, the ASSE Scalding Awareness Task Group, the Uniform Codes' Legionella Task Groups, and the ICC Plumbing/Mechanical/Fuel Gas Code Action Committee. 

He is a Professional Engineer in Alabama, Arizona, Arkansas, Colorado, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New York, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Utah, Virginia, West Virginia, and Wisconsin.

Areas of Expertise:

View Roger W. Griffith's Consulting Profile.

Prof. Makarand (Mark) Hastak, PhD, PE, CCP, CRIS, is the Professor and the Dernlan Family Head of Construction Engineering and Management as well as Professor of Civil Engineering at Purdue University. Dr. Hastak has been involved with the construction industry for the past 35 years providing his expertise through consulting, research, teaching, and service to the industry. 

Dr. Hastak is a world renowned expert in the area of construction engineering and management including risk management, profitability of Construction companies, process improvement, disaster risk reduction, resilience and capacity building, infrastructure management, intelligent planning for the built environment, project control, project management decision-making, and strategic planning. As a Fellow of the American Council on Education (cohort of 2013-14) at Cornell University his work focused on the various facets of Hybrid RCM budget, engaged institution, and Public-Private Partnership in academia.

Dr. Hastak is a Professional Engineer (PE), a Construction Risk Insurance Specialist (CRIS), and a Certified Cost Professional (CCP). He  has worked on numerous projects sponsored by the Construction Industry Institute (CII), NSF, State DOTs, and City Agencies. He is the current President of CIB (International Council for Research and Innovation in Building and Construction) and the Chair of the Advisory Board of teh Global Leadership Forum for Construction Engineering and Management programs (GLF-CEM). He also serves as an Academic Advisor to the Downstream and Chemicals Committee of the Construction Industry Institute (CII).

Dr. Hastak  has authored over 200 publications in his areas of expertise. He has co-authored a widely used book on Infrastructure Planning, Engineering, and Economics (McGraw-Hill 2006 and 2015). Dr. Hastak served on the Education Board of the Association for Advancement of Cost Engineering (2004-2016). He was Editor for two AACE books, the Skills and Knowledge of Cost Engineering (6th Ed. 2015) and the CCP Certification Study Guide (2nd Ed. 2016). He was also the Editor-in-Chief of the ASCE Journal of Management in Engineering (2009-2016). 

Dr. Hastak has given over 50 keynotes and invited lectures around the world. As a prominent educator and consultant, he also engages in developing training material and workshops as well as regularly teaching professional courses for the A/E/C industry. His services include consultation, on-site investigation, data collection, assessment, and reporting. He has completed the 30-Hour OSHA Hazard Recognition Training for the Construction Industry 

Dr. Hastak Lectures at the 2015 International Conference on Building Resilience

Litigation Support - Dr. Hastak offers expert witness services to attorneys representing both plaintiff and defendant. He has served as an Expert Witness on twenty-six (26) cases since 2017 and was deposed on eight plus two evidence depositions. His services include case reviews, written reports, depositions, and trial testimony as needed. 

Areas of Expertise:

View Dr. Hastak's Consulting Profile.

Joseph A. LaRovere, CEM, has over 35 years of experience as a contractor, owner/operator, technician, and consultant to the construction industry with specialties in HVAC, Mechanical, Electrical, Plumbing, Energy Management and Control Systems. Licensed PE, Project Manager, Design Professional, Construction Manager on staff.

Project Types - Health care facilities, Clean Rooms, Operating Suites, Apartments and Condominiums, Medical Office Buildings, K-12 Schools, Higher Education, Commercial Office Buildings, Highrise Buildings, Casinos, Hospitality, Assisted Living Facilities, Military Facilities, Manufacturing and Semi-Conductor Facilities

Litigation Support - Mr. LaRovere is a Forensic Expert Witness for cases involving HVAC, Mechanical, Plumbing, Construction Defects and Project Management for a variety of clients. He has worked in Arizona, California, Texas, Colorado, and Hawaii as an expert

Areas of Expertise:

Certifications:

• C.E.M. - Certified Energy Manager
• Honeywell Tridium Niagara AX
• Honeywell Tridium Niagara 4
• Johnson Controls Facility Explorer
• LEED AP BD&C (Inactive)

View Joseph LaRovere's Consulting Profile.

Tim Keane is recognized nationally and internationally as a Leading Expert on methods to Control, Mitigate and Assess the Risk for Legionella in building and industrial water systems. He has published articles and books on the subject and has co-written regulatory documents including the 2018 and the 2015 ASHRAE Standard titled: Legionellosis: Risk Management for Building Water Systems,  ASHRAE Guideline 12 titled: Managing the Risk of Legionellosis Associated with Building Water Systems, 2005 Guidelines for Ornamental Fountains and the 2000 ASHE Advisory. Mr Keane has over 25 years experience in water system consulting and over 10 years experience in facility design, construction and operation. Legionella Risk Management, Inc. provides consulting services for Effective Engineering Solutions to Engineering System Pathogens including; outbreak investigation, root cause analysis, control and remediation of legionella from water systems in commercial buildings, healthcare and industrial facilities.   We provide Litigation Support in this area.

Since 1988, Real-World Forensic Engineering, LLC ("RWFE") has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing in many areas.

RWFE Areas of Expertise Include:

At RWFE, we proudly distinguish ourselves by our Four C's:

CREDENTIALS. COMPETENCE. CREDIBILITY. COMMUNICATION.

Design Evaluation – Accident Investigation – Intellectual Property - Failure Analysis – Fire Cause & Origin – Component Testing - Computer Aided Drafting – Accident Animation - Expert Witness & Litigation Support

www.ExpertEngineering.com

Mark E. Rieser, II, MS, PE, AIA, GBC, GEC has over 30 years of experience in the Engineering, Architectural, Construction, and Building Design industry. He provides his clients with a comprehensive knowledge of Engineering, Construction Technology and Construction Standards of Professional Practice. 

Background Experience - President of an “active” Design and Building company with a professional staff and Headquarter offices in San Jose and Los Angeles, and offices in Sacramento and San Francisco. Mr. Rieser has managed, designed, and constructed over 4,000 units to include high-rise, single family homes, condominiums, townhomes, podiums, apartments, and commercial buildings, His experience includes building and roadway design, construction, management, with designs of over 500 miles of asphalt and roadway improvements, tunnels, San Francisco Airport, Santa Clara Light Rail, Southern Pacific Railroad, Caltrans, and BART. 

Mr. Rieser has an insightful understanding of Civil / Structural Engineering, Soil Engineering, Transportation, Traffic Engineering, Hydraulic Engineering, Safety Expert, OSHA Standards, Architectural Design, Asphalt Design, Cost Estimation, Public Works Design Bidding and Estimation, General Engineering, General Building, and an Accident Reconstruction expert. “Our bids are not just a tool but are numbers that we be use to finish the work, accurately, on-time, and safely.” 

Forensic Construction and Engineering - Mark Rieser is a renowned forensic expert with the knowledge to safeguard clients from unwanted litigation as well as support both plaintiffs and defendants. He works closely with insurance companies and attorneys on various public, city, and state cases throughout the western United States. To date, he has been designated as an expert in over 550 Forensic Construction and Engineering cases throughout the United States. Mr. Rieser has been designated and testified Court as an expert in the following categories:

View Mark Rieser's Consulting Profile.