Trigon | Kleinfelder offers forensic experts in the fields of geotechnical, roofing, construction materials, and building envelopes. Our forensic personnel consist of those individuals who possess the expertise, certifications and experience to quickly and thoroughly analyze the problem and then reach a conclusion that is supportable during expert witness testimony. Trigon | Kleinfelder's personnel have completed over 1,000 unbiased, impartial forensic engineering analyses for our clients, which include public and private companies, and the insurance and legal communities.