Waterproofing Expert Witnesses
Waterproofing expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on waterproofing. The waterproofing expert witness listings on this page are typically from fields/areas of expertise such as: Architecture, Building Inspection, Civil Engineering, Construction, Construction Defects, Construction Engineering, and Structural Engineering.
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Bradley C. Hammerstrom, AIA, NCARB
Construction Defects Expert Witness
The Diehl Group Architects, Inc.
San Diego, California
Construction Defects, Architecture
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Forensic Architecture, Destructive Testing, Site Inspections, Construction Defects, Building Envelope, Roofing, Fenestration, Waterproofing, Exterior Claddings, Construction Drawings, Contract Administration, Slip and Fall, Building Code, Peer Review, Quality Assurance, Testimony
30+ years' experience in construction defect litigation support and expert witness services for plaintiff and defense attorneys. Experience includes field investigations, water intrusion analysis, construction installation sequencing, code analysis, development of repair solutions, trial preparation and expert witness testimony. Projects include residential, commercial, and high rise in California, Nevada, Arizona, Colorado, Texas and Florida (licensed in 6 states). Experience also includes traditional architectural services for projects involving repair or reconstruction: architectural design, production of construction documents and contract administration. Experience includes consulting for architects and developers to provide peer-review of drawings, quality assurance site observations, evaluation of in-progress construction for conformance to the construction drawings and specifications and workmanship standards.
AIA - American Institute of Architects
NCARB - National council...
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Paul M Vanni
Construction Defects Expert Witness
Vanni and Associates, Inc
RIVERSIDE, California
Construction Defects, Construction Defects
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Roofing, Waterproofing, Deck coating
Paul Vanni is a building-envelope and waterproofing consultant with over 40 years of experience in the investigation, evaluation, and remediation of water intrusion, waterproofing failures, and building-envelope defects in multi-family, commercial, and institutional buildings.
Mr. Vanni specializes in forensic investigation of moisture intrusion, including destructive and non-destructive testing, ASTM water testing, review of construction documents and detailing, and evaluation of waterproofing systems such as podium decks, balconies, elevated walkways, plaza decks, roofing assemblies, and below-grade and between-slab waterproofing. His work frequently involves identifying installation deficiencies, detailing errors, material incompatibilities, and long-term performance issues affecting building-envelope systems.
He routinely assists attorneys, owners, homeowners associations, property managers, and insurers with causation analysis, evaluation of compliance with industry standards...
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Tracy Myers, AIA
Myers Consulting
California
Architecture, Construction Defects
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Standard of care, general construction, personal injury, trip and fall, stairs, accessibility, ADA, construction, defect analysis, roofing, waterproofing, fenestration, building enclosure, building envelope, accident, contracts, architect, general contractor, NCARB, RRO
Tracy Myers is an architect and general contractor with 34 years of broad experience in architectural design, project management, property condition evaluation, construction administration, general construction, forensics, and property loss consulting. She specializes in expert witness testimony related to architectural and general construction issues, personal injury defect and accident investigation, building enclosure investigation and repair including waterproofing, roofing and fenestration, forensic architecture, litigation support, property loss evaluation, code upgrade review, peer review and quality assurance services.
Prior to opening her own consulting practice in 2019, she worked for privately-owned architectural and forensic architectural firms, a corporate development department at a privately-owned restaurant company, a roofing manufacturer as a member of their Building and Roofing Science team, and a construction consulting firm.
Ms. Myers has worked in the fore...
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Kier G Cotton
Construction Defect Expert Witness
KORE Consulting Group LLC
Santa Maria, California
Construction, Construction Defects
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General Construction, Framing, Building Envelope, Waterproofing, Electrical, HVAC, Concrete, Residential Construction, Multi Family Dwelling, Single Family Dwelling, Commercial Construction, Finish, Contract Scope, Cost to Repair, Site development, Architectural Design, Utility, Gas, Solar, Fire
Mr. Cotton possesses a diverse, in-depth, and hands-on knowledge of construction methodologies, complemented by substantial experience in project management. His theoretical understanding is augmented by years of direct application. In California, Mr. Cotton maintains active licenses in plumbing, electrical work, and carpentry. He gained the necessary experience for these certifications under the mentorship of licensed professionals in each field and successfully passed all requisite examinations. His construction career began in the early 2000s, establishing a solid foundation for his extensive expertise.
As a Testifying Expert Witness, Mr. Cotton has been involved in numerous construction-related cases. Serving as Senior Consultant at KORE Consulting Group LLC, in the San Francisco Bay area CA, he is a highly skilled expert in providing construction defect and litigation services, which include:
- Testing and analysis of construction defects.
- Destructive testing following ASTM...
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Barry Taheri
Infrastructure/Construction/Forensics and Testing
California Consultants
Long Beach, California
Construction Defects, Construction Engineering
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Waterproofing, Building Envelope, Windows and Doors, Leak Investigation, building Enclosure, Below Grade, Above Grade, Roof, Planters, Construction Standard Of Care, Water Damage
Barry Taheri is the founder and Principal of California Consultants and is recognized as one of the most sought-after expert witnesses in the fields of Building Science, Building Enclosure, and Waterproofing Systems.
With over 24 years of industry experience, Barry and his firm have played a critical role in the success of more than 80 litigation support cases, 100 new construction projects, and 200 forensic investigations. His expertise spans over 5,000 completed forensic projects, and he is a designated industry expert for the California Contractors State License Board (CSLB). Barry also holds active general contractor licenses in multiple states and maintains several system and manufacturer certifications relevant to the industry.
California Consultants was a key contributor in the largest construction defect rescission case in North America. The firm has a proven track record of successfully negotiating and facilitating favorable case settlements.
As a full-service, turnkey o...
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Tracy Myers, AIA
Myers Consulting
Altamonte Springs, Florida
Architecture, Construction Defects
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Standard of care, general construction, personal injury, trip and fall, stairs, accessibility, ADA, construction, defect analysis, roofing, waterproofing, fenestration, building enclosure, building envelope, accident, contracts, architect, general contractor, NCARB, RRO
Tracy Myers is an architect and general contractor with 34 years of broad experience in architectural design, project management, property condition evaluation, construction administration, general construction, forensics, and property loss consulting. She specializes in expert witness testimony related to architectural and general construction issues, personal injury defect and accident investigation, building enclosure investigation and repair including waterproofing, roofing and fenestration, forensic architecture, litigation support, property loss evaluation, code upgrade review, peer review and quality assurance services.
Prior to opening her own consulting practice in 2019, she worked for privately-owned architectural and forensic architectural firms, a corporate development department at a privately-owned restaurant company, a roofing manufacturer as a member of their Building and Roofing Science team, and a construction consulting firm.
Ms. Myers has worked in the fore...
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Shauna Serafini, RWC, REWC, FMPC
Building Envelope & Construction Defects Expert
GCI Consultants
Jupiter, Florida
Construction Defects, Building Inspection
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Building Envelope, Water Infiltration, Forensic Investigation, Quality Assurance, Design Review, Construction Management, Expert Testimony, Glazing Systems, Waterproofing, Fenestration, Facade Systems, New Construction, Commercial Structures, Institutional Facilities, Moisture Control, Water Leakage
Shauna Serafini, RWC, FMPC, is a Senior Consultant and Expert Witness at GCI Consultants with decades of experience in building envelope consulting. She specializes in exterior glazing, wall systems, and waterproofing, focusing on design, installation, water infiltration resistance, and performance assessment.
Key Qualifications:
- Bachelor of Science in Civil Engineering from Florida Atlantic University
- Registered Waterproofing Consultant (RWC) by IIBEC
- Registered Exterior Wall Consultant (REWC) by IIBEC
- Fenestration Master (FMPC) accredited by FGIA
- Certified Building Commissioning Professional (CBCP) from AEE
- LEED Green Associate (LEED GA) from USGBC
- Level 1 Certified Thermographer by The Snell Group
Professional Experience:
- 2022-Present: Senior Consultant and Principal, GCI Consultants
- 2017-2022: Senior Consultant and Project Manager, GCI Consultants
- 2013-2017: Consultant and Project Manager, GCI Consultants
- 2009-2013: Forensic Investigator, Glazing Consulta...
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Christopher Matthews
Building Envelope & Construction Defects Expert
GCI Consultants
Jupiter, Florida
Construction Defects, Building Inspection
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Building Envelope, Building Enclosure, Water Infiltration, Hurricane Resistance, Forensic Investigation, Water Leakage, Facade Systems, Waterproofing, Litigation Support, Building Diagnostics, Air Barriers, Expert Witness, Fenestration, Weatherproofing, Envelope Retrofits, Exterior Glazing Systems
Christopher Matthews is a highly experienced building envelope consultant with over 40 years of expertise in exterior glazing and wall systems. As President and Principal Consultant at GCI Consultants since 2002, he specializes in design, installation, water infiltration resistance, performance assessment, and hurricane readiness of building envelope systems.
Key Qualifications:
- Extensive consulting experience with owners, architects, engineers, insurers, and builders on hundreds of projects across 45 U.S. states, North America, and the Caribbean.
- Expertise in forensic investigation and repair of existing structures with envelope performance issues.
- Litigation support consultant and expert witness in disputes related to exterior wall and glazing system installation, performance, and design.
- Proficient in successful design and construction of new buildings of various types.
Professional Experience:
- 2002-Present: GCI Consultants - President and Principal Consultant
- 1985...
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Jason Bondurant, PE, RRC
Building Envelope & Construction Defects Expert
GCI Consultants, LLC
Jupiter, Florida
Construction Defects, Civil Engineering
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Building Envelope, Water Infiltration, Forensic Investigation, Facade Systems, Building Performance, Waterproofing, Moisture Control, Air Barriers, Roofing Systems, Fenestration, Weatherproofing, Building Diagnostics, Water Leaks, Litigation Support, Expert Testimony, Windows, Doors, Exterior Walls
Jason Bondurant, PE, RRC, is a Senior Engineer at GCI Consultants, LLC, a leading building envelope consulting and engineering firm based in South Florida. With over 12 years of extensive experience in the field, Jason has established himself as an expert in building envelope systems, specializing in roofing/waterproofing systems, exterior wall systems, and glazing systems.
Professional Qualifications:
- Licensed Professional Engineer in seven states: Alabama, Florida, Georgia, Louisiana, Mississippi, Oklahoma, and Texas
- Registered Roof Consultant (RRC) with the International Institute of Building Enclosure Consultants (IIBEC)
- Bachelor of Science in Civil Engineering from the University of Florida (2012)
Areas of Expertise:
- Forensic investigations of building envelope failures
- Development of repair plans and specifications
- Construction management services
- Quality assurance inspections
- Expert witness testimony
Professional Experience:
- 2019-Present: Senior Consultan...
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Andrew Schrader
Construction Defects Expert Witness - Engineer
Recon Response Engineering LLC
St Petersburg, Florida
Construction Defects, Structural Engineering
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Building Envelope, Building Code, Forensic Engineering, Concrete, Stucco, Geotechnical, Masonry, Flatwork, Asphalt Paving, Exterior Cladding, Siding, OSHA - Construction Safety, Milestone Inspections, Roofing, Structural Collapse, Wind Storm Damage, Painting, Waterproofing, Water Intrusion, Condominiums
Andrew Schrader is a Florida Board-recognized Structural Engineer, Special Inspector and Certified General Contractor.
His background encompasses working as a consulting engineer on building envelope, construction defect and forensic engineering projects. He also serves the State of Florida as a First Responder and engineering advisor for its Urban Search and Rescue Task Force. His 20+ year career includes work on buildings made of structural steel, reinforced concrete, masonry, stucco/EIFS over wood frame, and re-roofing.
He has guest-lectured at the University of South Florida's College of Engineering, the New York State Department of Homeland Security, and FDIC International (Fire Department Instructor's Conference). Andrew has been deployed by the State of Florida for search and rescue operations for six separate hurricane events as well as the Champlain Tower (Surfside) condominium building collapse.
While earning his Master’s degree at the University of South Florida, Mr...
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James V Hanna, II, AIA, NCARB
Hanna Design Alliance
DECATUR, Georgia
Construction Defects, Architecture
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Envelope, Construction, Commercial, Residential, Stucco, Water Intrusion, Roofing, Accessibility, Windows, Sound, Fire, Balcony, Waterproofing, Brick, Siding, Codes, ADA, Air Barrier, Wood, Zoning
Expert Profile:
Jim Hanna has more than 35 years as a practicing architect including interior architecture, corporate leadership, quality assurance, and quality control. Hanna has provided consultation, arbitration, mediation, and expert witness services.
Jim is an architect and the founder of Hanna Design Alliance, LLC. hannada.com and his career has spanned building types including multifamily apartment, condominium, resort, hotel, office, medical, and recreational design. With a focus on the technical aspects of architecture and the built environment, he has been responsible for waterproofing detailing, contractual agreements, and design management including specialty consultants.
Mr. Hanna is a member of the American Institute of Architecture, NCARB, International Code Council, and the National Fire Protection Association.
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Michael S Teller, AIA, NCARB, LEED AP, MCPPO
MST Consulting
Boston, Massachusetts
Architecture, Construction Defects
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Design defects, Standard of Care, Roofing, Massachusetts Public Bidding, Historic Restoration, Architecture, Leaks, Windows, Contracts, Historic, Architectural Design, Waterproofing, Concrete, Ice Dams, Sealants and Caulking, Construction Defects, Masonry, Chapter 149, Wrought Iron, Wood Trim
Having lived it from the inside, I assist Attorneys and Owners in assessing the merits of architectural and construction cases. I also help architects and contractors defend matters based on my 46 years of experience understanding the design and building process, the technical issues, as well as the roles of each party.
As a Registered Architect (MA, RI, NY) and Building Envelope Consultant, I focus on architectural standard of care issues and construction defects associated with leaks, roofing, windows, masonry, concrete, ice dams, sealants and caulking, wood trim and wrought iron. I specialize in Massachusetts Chapter 149 bidding issues and disputes associated with the renovation of existing and historic buildings as well as new construction.
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Jeffrey A Grusenmeyer, RA, NCARB, MPE, CBO
Architecture/Forensics/Construction Defects/Code
Jeffrey A. Grusenmeyer & Associates, Inc.
Michigan
Architecture, Construction Defects
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Forensic Architect, Building Inspection, Architectural Professional Liability, Water Intrusion & Damage, ADA Consulting, Slip Trip and Fall, Building Code, Building Envelope, Waterproofing, Roofs, Fenestration, Construction Administration, Construction Standards, Standard of Care, Design Errors
Responsible for field investigations, failure analysis, building code research, repair solutions, expert reports, trial preparation, and expert witness testimony. Completed more than 10,000 plan examinations for numerous jurisdictions. Technical investigations and research of suspected design and construction problems. Verify and compare as-built conditions, design parameters, building jurisdiction requirements and applicable industry standards of care. Provide quality assurance, evaluation and observation of in-progress construction of commercial and residential structures for conformance to design, material and workmanship standards. Provide expert services for Architecturally related personal Injury matters.
NCARB National Council of Architectural Registration Boards Certified
Certified as a Building Official by the Council of American Building Officials. Certified as a Building Official, Master Plans Examiner, Building Inspector, Plumbing Inspector and Residential Building Of...
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Mark S Eksuzian, R.A., NCARB
Construction Defects Expert Witness
Mark Dean Associates, Inc
Newburgh, New York
Construction, Architecture
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Std of Care, Change Orders, Design Evaluation, Proj. Feasibility, Poj. Filing, Const Defects, Mitigation, Doc Compliance, Scheduling, Protect Review, Contract Admin, Conflict Resolution, Pre-const., Waterproofing, Roof Systems, Cost Mgmnt, Proj. Mgmt, Proj. Design, Hist. Preserv., Spec. devel.
Mark Eksuzian is a multi-state licensed architect with extensive experience in high-rise and out-of-ground projects across the single home, multi-family, hospitality, commercial and industrial sectors. His expertise in design, cost management, procurement, and collaboration with contractors makes him a trusted and invaluable team member in the field.
With a strong background in construction operations, expert witness work, and standard of care, Mark excels at identifying and resolving project conflicts while providing insightful explanations of construction processes, changes and construction defects.
Mark’s commitment to continuous learning ensures he remains at the forefront of industry trends and best practices.
He is ready to become an integral part of your team and contribute his expertise to your design and construction cases. Learn more about his work at www.markdean21.com.
Let’s start the conversation—Call Mark now at 203-339-2379 to explore how he can assist your team.
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Jeffrey A Martin
Fortress BEC
Rougemont, North Carolina
Building Inspection, Construction Defects
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Roofing, EIFS, Waterproofing, Flashing, AAMA, Water Testing, Building Envelope, Wall defects, Water Intrusion, RRC, Roofing Defects, Roofing Failures, Infrared Thermography, Tramex, EIFS Inspector, Adhered Stone, Plaza Deck, Balcony, Sheet Metal, Curtain Wall
Registered Roof Consultant (International Institute of Building Enclosure Consultants)
Registered Roof Observer (International Institute of Building Enclosure Consultants)
Registered Exterior Wall Observer (International Institute of Building Consultants)
Construction Document Technologist (Construction Specification Institute)
Level One Infrared Thermographer
Certified EIFS Inspector (Association of Walls and Ceilings)
Certified EIFS Inspector and Level I and II Inspector (Exterior Design Institute)
Adhered Stone Certification (Exterior Design Institute)
After growing up in a family run commercial roofing business (3rd generation), I have over 35 years experience in the roofing, sheet metal, and construction industry. My knowledge includes all phases of roofing (Single ply, TPO, EPDM, Modified Bitumen, Built-up Coal Tar, PVC, Shingles, Metal Roofing, Clay Tile, and Slate) as well as related sheet metal work. I also perform wall and waterproofing design, observation, and inspecti...
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Jeffrey A Grusenmeyer, RA, NCARB, MPE, CBO
Architecture/Forensics/Construction Defects/Code
Jeffrey A. Grusenmeyer & Associates, Inc.
Fairview Park, Ohio
Architecture, Construction Defects
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Forensic Architect, Building Inspection, Architectural Professional Liability, Water Intrusion & Damage, ADA Consulting, Slip Trip and Fall, Building Code, Building Envelope, Waterproofing, Roofs, Fenestration, Construction Administration, Construction Standards, Standard of Care, Design Errors
Responsible for field investigations, failure analysis, building code research, repair solutions, expert reports, trial preparation, and expert witness testimony. Completed more than 10,000 plan examinations for numerous jurisdictions. Technical investigations and research of suspected design and construction problems. Verify and compare as-built conditions, design parameters, building jurisdiction requirements and applicable industry standards of care. Provide quality assurance, evaluation and observation of in-progress construction of commercial and residential structures for conformance to design, material and workmanship standards. Provide expert services for Architecturally related personal Injury matters.
NCARB National Council of Architectural Registration Boards Certified
Certified as a Building Official by the Council of American Building Officials. Certified as a Building Official, Master Plans Examiner, Building Inspector, Plumbing Inspector and Residential Building Of...
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Jeffrey A Grusenmeyer, RA, NCARB, MPE, CBO
Architecture/Forensics/Construction Defects/Code
Jeffrey A. Grusenmeyer & Associates, Inc.
Pennsylvania
Architecture, Construction Defects
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Forensic Architect, Building Inspection, Architectural Professional Liability, Water Intrusion & Damage, ADA Consulting, Slip Trip and Fall, Building Code, Building Envelope, Waterproofing, Roofs, Fenestration, Construction Administration, Construction Standards, Standard of Care, Design Errors
Responsible for field investigations, failure analysis, building code research, repair solutions, expert reports, trial preparation, and expert witness testimony. Completed more than 10,000 plan examinations for numerous jurisdictions. Technical investigations and research of suspected design and construction problems. Verify and compare as-built conditions, design parameters, building jurisdiction requirements and applicable industry standards of care. Provide quality assurance, evaluation and observation of in-progress construction of commercial and residential structures for conformance to design, material and workmanship standards. Provide expert services for Architecturally related personal Injury matters.
NCARB National Council of Architectural Registration Boards Certified
Certified as a Building Official by the Council of American Building Officials. Certified as a Building Official, Master Plans Examiner, Building Inspector, Plumbing Inspector and Residential Building Of...
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Nicholas Heimann
General Contractor, Business Owner, Attorney
Philadelphia, Pennsylvania
Construction, Construction Defects
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Workmanship, Estimating, Warranties, General contracting, Weatherproofing, Plan review, Accessibility, Building code, Siding, Roofing, Masonry, Carpentry, Building envelope, Waterproofing, Finish plumbing, Tile, Substrates, Site safety, Framing, Windows
I am an owner of a general contracting and real estate investment company licensed in the city of Philadelphia. I received my JD from Temple University in 2013 and passed the Pennsylvania Bar. Shortly thereafter after I went into the construction business and have been running these companies ever since. We have completed hundreds of contracting projects for clients ranging from bathroom renovations to large additions. On the real estate investment side, we have purchased and renovated over a dozen properties to flip or rent. These projects varied in scope from quick fix and flip to whole home new construction.
Licensed contractor in Philadelphia and Pennsylvania
