​​Mr. Ahearn brings over 25 years of combined experience in construction defect, failure analysis, and investigative work, with a diverse, deep background in residential construction, including foundations, framing, roofing, exterior finishes, fenestrations, plumbing, and minor electrical.

​As a civil engineer practitioner, Mr. Ahearn’s experience included site design (buildings, roads, parking, utilities, and accessibility), municipal planning, stormwater management, and water/wastewater treatment and piping. Mr. Ahearn has investigated failures of water distribution pumps/piping, building collapse, building moisture intrusion, concrete and precast concrete structures, foundations, and soil systems. In addition to construction methods, Mr. Ahearn is an active member of the ANSI A10 committee on construction safety, contributing toward increased workplace safety.

​Mr. Ahearn has more than 15 years of materials science experience, which has included materials characterization, testing, fractography, and failure analysis of glass, ceramics, refractories, concretes, and coatings. Some example material applications include cast-in-place and precast concrete, industrial refractory linings, glass and ceramic components, plumbing fixtures, pharmaceuticals, container glass, building glass, and industrial equipment components. Mr. Ahearn has performed hundreds of pharmaceutical manufacturing root cause investigations, including tableted oral dosages, liquid oral dosages, and transdermal patches. He also has extensive experience analyzing coatings used for adhesives, paints, and sealants.

​Mr. Ahearn has published peer-reviewed engineering and scientific research and provided testimony regarding engineering analysis, materials science, and safety.​