Matthew J. Sitzmann is a Forensic Engineer with Haag, a Salas O’Brien Company, bringing over 27 years of experience in forensic engineering and design. Mr. Sitzmann has conducted damage assessments on thousands of roofs and building envelopes across a wide range of structures.

Mr. Sitzmann holds a Bachelor of Science in Mechanical Engineering from Iowa State University and a Master of Engineering in Mechanical Engineering from The University of Texas at Arlington. He is a licensed professional engineer in 10 states and an active member of the American Society of Mechanical Engineers (ASME) and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).

A contributing author and instructor for numerous Haag courses and certifications, Mr. Sitzmann has played a key role in developing and presenting content on topics such as residential and commercial roofing systems and weather-related damage. He is also a published author, with papers including “Effect of Dents in Condenser Fins on Air Conditioner Performance” (ASHRAE) and “Hail Effects on Air-Conditioner Performance” (Proceedings of IMECE2007), among others.