PSE provides structural forensic investigation services concerning soil-structure interactions, performance of structural systems, evaluations of building envelopes, and determination of cause, origin, and extent of peril damage for a variety of clientele including owners, builders, contractors, warranty companies, insurance companies, and law firms. Soil-structure interaction assessments include investigations relating to design, construction, historic/current site effects, and moisture source influences. Structural system assessments include investigations relating to current or latent design and construction issues. Building envelope assessments include claims relating to roof coverings, veneers, flashing, and weather resistive barriers. Peril assessments include investigations relating to hurricane damage, tornado damage, windstorm damage, lightning strikes, hail, floods, earthquake damage, explosions, fires, and vehicle-structure collisions. PSE performs site investigations and devises protocols for site-specific investigative tests that may include relative elevation surveys, geotechnical borings, geophysical resistivity surveys, ground-penetrating radar surveys, groundwater monitoring, water chemical analysis, test pit excavations, material strength tests, and water application/infiltration tests. PSE’s forensic expertise includes investigations of single-family residences, multi-family apartment/condominium complexes, commercial facilities, and warehouses as well as ancillary structures such as retaining walls, screen walls, and swimming pools. PSE conducts investigations, performs analysis, and reaches sound conclusions based on evidence supported by engineering principles and a scientific method.