Dan Johnson, FMPC | GCI Consultants Building Envelope Expert

A seasoned expert witness, Dan passionately supports his clients' causes with fair and unbiased supporting data. His sharp intellect and profound understanding of fenestration products and façade performance guide him in unraveling intricate expert matters.

Dan Johnson is a Senior Consultant with GCI Consultants. He has over 30 years of field and laboratory experience in the evaluation of fenestration product and façade performance.

He has worked on hundreds of projects from the design stages, inspection and testing of new construction to the forensic investigations of existing structures. In addition, he serves as a litigation support consultant and expert witness in disputes related to exterior wall, window and glazing system installation and performance.

Practice Emphasis

Arbitration / Mediation
Building Enclosures
Building Envelope System Analysis
Condition Assessments
Construction Defect Litigation
Exterior Glazing Systems
Exterior Wall Systems
Forensic Evaluations
Litigation Support
Product Performance Testing
Storm Damage Assessments
Water Infiltration Resistance
Water Leak Investigations
Waterproofing Systems
Wind Damage Inspections
Wind Risk Assessments

Professional Training & Seminars

"NFPA 285 and Weather Resistive Barriers – Implications for Wall Design" ABAA (2022)
"Raise Your Expectations of Continuous Insulation & Air Barrier Systems" ABAA (2022)
"Multifamily Enclosure Design" ABAA (2022)
"Design and Construction of the Air Barrier for Passive House Construction" ABAA (2022)
"Integrated Fire and Smoke Door Systems" CSI (2022)
"Though Wall Flashings Compatibility, Sustainability and Performance" ABAA (2022)
"Moisture Movement in Building Enclosures" CSI (2022)
"Quality Assurance or Quality Control" CSI (2022)
"Smokin” NFPA 285: History, Triggers and Solutions"
ABAA (2022)
"Ground Hog Day: Recurring Air Barrier Installation Issues"
CSI (2022)

Certifications & Registrations

Fenestration Masters Professional Certification, FGIA

Project History

High-Rise Commercial Buildings
Mid-Rise Commercial Buildings
Multi-Family Condominiums and Apartments
Single Family Residences
Institutions
Hospitality

Memberships

American Society for Testing Materials (ASTM)
Building Enclosure Council - Minnesota
Builders Hardware Manufactures Association (BHMA)
Construction Specifications Institute (CSI)
Fenestration and Glazing Industry Alliance (FGIA)
Insulating Glass Certification Council (IGCC)
Safety Glazing Certification Council (SGCC)

Education

St. Cloud State University, BS, Engineering Technology, 1988

GCI Consultants provide QA/QC, quality assurance testing, field testing, QC testing, performance testing, ASTM E783, ASTM E1105, AAMA 501.2, AAMA 502, AAMA 503, ASTM E576, ASTM D5957, ASTM testing, air infiltration testing, water infiltration testing, frost point testing, flood testing, AAMA testing, expert inspection, testing and testimony to law firms, developers, institutions, manufacturers, insurance companies, property owners, service providers, and businesses throughout the United States and Internationally. GCI Consultants' offices are in Florida and Minnesota and provide services to Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.