Investigating a roof failure requires the command of a varied and disparate list of disciplines, including but not limited to engineering, architecture, construction, metallurgy, and physics.  The Donan roof investigation team is well versed in these and many other aspects of determining the causes of roof failures.

A Donan investigation takes into account the type of roofing involved, weather data at the time of the failure, installation procedures, building code compliance, and the actual condition of the roof versus the projected condition in relation to its age and exposure to the elements.

Donan’s experienced team of engineer’s experts, and registered roofing consultants can determine the difference between storm-related damage and defective roofing materials, defective installation, or maintenance issues.  Our experts not only ascertain the cause of the loss, but can also help in possible subrogation based on the evidence compiled during the investigation.

Donan Engineering began conducting forensic studies on roofs in the early 1980s, and today we study over 5,000 roofs a year — a major component of our business.  We take considerable pride in providing knowledgeable, legally recognized expertise on commercial and residential roofing for the entire portfolio of roof systems, installation methods, and failure perils.