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Expertise Description

I have over 30 years experience as a civil engineer specializing in roofing issues, including laboratory analysis; inspections; building envelopes; roof management; roofing failures; moisture surveys; waterproofing; roof coatings; reroofing; leak investigation / analysis; ventilation / condensation; wind damage; fastenings; construction documents / monitoring; and insurance and legal claims. I also specialize in hurricane, earthquake, fire, and hail damage. My additional experience includes façade, concrete, and masonry failures, in addition to foundations, retaining walls, and anchors. I have expertise in construction management, scheduling, marketing, and training. I have more than 30 years expert witness experience with consultations, deposition, and courtroom testimony.

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Relevant Experiences

I am a roofing, waterproofing, and building envelope expert and Professional Engineer (CA, NV, and MN), Registered Roof Consultant, and author. I have a Master’s Degree in Civil Engineering and over 30 years investigating, designing, and providing expert witness testimony regarding roof and waterproofing systems. I have special expertise in rooftop solar PV; code compliance; roof wind damage (hurricanes); collapse due to inadequate roof drains or overflow scuppers; and hygrothermal analysis of condensation, mold growth, and wood dry rot using WUFI Pro and ASHRAE Standard 160.


Master of ScienceCivil EngineeringUniversity of Minnesota
Bachelor of ScienceCivil EngineeringUniversity of Minnesota

Licenses Certifications

Professional Engineer (PE)
State of Nevada
Registered Roof Consultant (RRC)
Professional Engineer (PE)
State of California
Certified Roof Consultant (CRC)
Professional Engineer (PE)
State of Minnesota

Awards & Affiliation

Outstanding Volunteer Award
Roof Consultants Institute
Young Engineer of the Year Award
Society of American Military Engineers
American Society of Civil Engineering Student Award

Primary Affiliation

Roof Consultants Institute (RCI)

Partial List of Consulting Expert Witness Cases