David G. Shreve, PE, is a licensed Professional Engineer in 18 states. He holds a certification from the National Council of Examiners for Engineering and Surveying (NCEES), is a LEED® accredited professional for Building and Construction and holds a Certified in Plumbing Design (CPD) credential.
Mr. Shreve has over 30 years of experience in design, construction administration and forensic analysis of Mechanical, Plumbing, Fire Protection, and Energy Management Systems for commercial, institutional and residential projects. He is also a member of American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), American Society of Plumbing Engineers (ASPE) and International Code Council (ICC).
Mr. Shreve joined Ivey Engineering in 2014. His primary responsibilities include forensic analysis of HVAC, plumbing, fire protection and energy management systems. He also performs site inspections, testing, research, product analysis and cost estimating, and is responsible for writing reports and testifying in depositions, hearings and trials.
EXPERIENCE (partial listing) ∗ Approximately 300 HVAC, fire protection and plumbing design projects ∗ Approximately 10 LEED® design projects ∗ Approximately 20 feasibility studies ∗ Approximately 125 expert witness engagements
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:
Investment Engineering Economics
Mechanical Engineering Standard of Care
Architectural Standard of Care
Construction Schedule Analysis
Instrumentation and Controls
Steam Systems and Boilers
Power and Utilities
Professional Engineer: PA (PE075410)
American Bar Association (ABA) – Construction Forum
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
Brian Zimmerman, PE, has over 35 years of experience in the Commercial HVAC Engineering and Design market. The past 13 years, Mr. Zimmerman has designed over 350 Cannabis Cultivation and Processing Facilities across the US and Canada.
Mr. Zimmerman is an expert in sizing and specifying HVAC equipment in the indoor cannabis and controlled environmental agriculture (CEA) markets. His specialty is in HVAC equipment sizing, control, and capabilities for maintaining stable design setpoints for temperature and relative humidity (RH).
Litigation Support - A Registered Professional Engineer in Colorado, Arizona, and California, Mr. Zimmerman provides expert witness services to attorneys representing plaintiff and defendant. Cases include issues with cannabis cultivation and other indoor agriculture facilities. Services include on-site inspection, thorough reporting, depositions, and trial testimony as needed.
Areas of Expertise:
Indoor Cannabis Cultivation Environment
Cannabis Cultivation Engineering
Indoor Cannabis HVAC Requirements
Vapor Pressure Differentials (VPD)
Background Experience - Mr. Zimmerman served as the Executive Vice President of Engineering at Urban-Gro, Inc. from 2019 through August 2022. He was previously the President and Owner of Impact Engineering, Inc., a company acquired by Urban-Gro in March 2019. Mr. Zimmerman founded this company in 1997 to provide full-service HVAC, plumbing, and electrical engineering, and consulting for the cannabis commercial development industry.
In 2009, Mr. Zimmerman and his team at Impact Engineering designed the first cultivation facility in Colorado for Medicine Man Technologies. Since then, Impact Engineering has designed over 350 cannabis cultivation facilities across the US and in Canada. Mr. Zimmerman has perfected the ability to size and control the indoor environment with mechanical equipment to maximize the quantity, quality, health and consistency of product from harvest-to-harvest.
Roger W. Griffith, P.E. has over 37 years of experience as a registered professional Mechanical Engineer in the design, maintenance, and operation of 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, churches, manufacturing facilities, medical buildings, restaurants, historic buildings, dormitories, fire halls, and maintenance facilities.
Litigation Support - Since 2002, Mr. Griffith has been providing forensic engineering, consulting, and expert witness services that are thorough, credible, and timely. 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 Registered Professional Engineer in Alabama, Arizona, Arkansas, Colorado, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Minnesota, Mississippi, Missouri, New York, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Utah, and Virginia.
John Hatcher is an industry leader in Building Systems Engineering including, Information Technology, Audio Visual, Security, Building Automation Systems, Fire Alarm Systems, Intelligent Building Concepts and Commissioning. He has worked on some of the most prestigious facilities in the world including the Americas, Europe, Middle East, Russia, India and Southeast Asia.
Andrew Allocco, PE, is a leading Construction Consultant, Florida Certified Contractor, Florida Licensed Public Insurance Adjuster and Real Estate Broker. With over 45 years of experience in his fields of expertise, Mr. Allocco's services are sought by individuals, corporations, developers, and law firms to oversee and advise on construction projects. He is the current owner of construction, real estate, and engineering consulting firms.
Background Experience - Mr. Allocco is the President of Indian River Construction Services, Inc. Prior to his current role, he served as the President of Better Homes Construction Services, Inc. of Miami, Florida, which performed in excess of 40,000 Building Inspections. As a Forensic Consulting Engineer, he inspects Commercial, Residential, and Industrial Facilities before, during, and after construction. He assists property owners with complex insurance claims, some of which involve significant and lengthy litigation
Mr. Allocco is not only licensed in the State of Florida as a Professional Engineer and Licensed Public Insurance Adjuster, he holds more Florida certified contractor licenses both presently active and past than any other individual in the State
Litigation Support - Since the early 1970s, Andrew Allocco has been an Expert Witness in many court and arbitration cases involving disputes between owners, builders, contractors, and architects. He has extensive knowledge of the court litigation process and has assisted law firms in providing facts and questions to be used during depositions and discovery motions. Mr. Allocco's services include inspection reports on the status of the property, depositions, trial testimony, arbitration, and mediation hearings.
Areas of Expertise:
Structural Condition of Buildings / Drone Inspections
Smart Buildings / Energy Use / Conservation
Insurance Litigation and Structural Consulting - Mr. Allocco is also called upon by insurance companies and attorneys representing property owners to help adjusters evaluate loss. He has been retained to investigate the cause of structural failures, determine the extent of the structural damage, develop subrogation information, prepare the scope of repair, develop a repair design, draft specifications, and more. Mr. Allocco also has experience with code upgrades and notice of dangerous conditions, including hurricanes such as Hurricane Andrew.
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.
Dr. Vincent Conte of the Miami - Dade County Health Department said about the EPIC hotel Legionnaires' disease outbreak, "What's ironic is the hotel installed a special filtration system to enhance the quality of their drinking water."
The greatest tool to prevent infection during construction is awareness. This book helps you prevent and manage healthcare-associated infections related to construction, renovations, repair, and maintenance activities. Easy-to-use tools help you set up a risk management program, monitor construction activities, and comply with all regulatory codes and standards...