Mold Expert Witnesses
Mold becomes a commercial litigation issue when moisture problems in a building translate into repair costs, lost use, and contested responsibility among sophisticated parties. Owners and developers pursue contractors and design professionals over water intrusion from building envelope and mechanical system defects, landlords and commercial tenants dispute who must remediate and whether premises remain usable, and insurers and policyholders contest whether mold losses fall within coverage. Property transactions add another layer when a buyer alleges that mold conditions were concealed or missed in due diligence. The central questions are typically where the moisture came from, when the growth began, whether the building was designed, built, and maintained to accepted standards, and what remediation is actually necessary.
A mold expert helps counsel answer those questions through disciplined investigation rather than visual impression. The analysis usually integrates moisture mapping, air and surface sampling, building science review, HVAC performance data, maintenance records, and construction documents to identify the moisture source and reconstruct a timeline of growth. That timeline often determines liability, because it can separate a construction or design defect from a later maintenance failure, a discrete water event, or conditions that predated a sale or lease. Remediation specialists can then evaluate whether the scope and cost of the work conformed to recognized protocols such as the IICRC S520 standard, which bears directly on damages and coverage. The same analysis allows counsel to challenge sampling programs that lack proper controls or remediation claims that exceed what the conditions warranted.
Mold disputes cut across building science, industrial hygiene, mycology, HVAC engineering, construction practice, and valuation, and an expert suited to explaining spore counts may be the wrong witness to testify about envelope design or repair costs. Experts in our network include certified industrial hygienists who have founded exposure assessment and consulting firms, building scientists and construction managers who have testified dozens of times on construction defects and repair strategies, and HVAC specialists including a Fellow of ASHRAE. Our network also includes mycologists and microbiologists with decades of research on fungal biology, environmental scientists who developed underwriting criteria for mold and water damage insurance coverage, and appraisers who have testified on property value in construction defect matters. Drawing on more than 75,000 expert searches for litigators, Round Table Group can help you assemble the right combination of scientific and building expertise for your mold dispute. Contact us to discuss your case by calling us at (202) 908-4500.
