About Forensic Building Science
Forensic Building Science, Inc (FBS), was established in 2004 in response to the high number of homes with water
infiltration and structural defects. Our company has investigated over 1500 homes damaged by water intrusion in
Minnesota, Wisconsin, South Dakota, New York, New Jersey, and Florida.  A majority of these homes were still within
their statutory warranty period.  

FBS offers comprehensive testing of wall, floor and roof assembles, window testing, mold testing, theory of damage
conclusions and litigation support.  Our staff includes, a Minnesota Certified Building Official-limited, Professional  
Engineer,  and  project managers and field technicians with a wide variety of construction, inspection and testing
experience.  We also work in coordination with other testing firms, attorneys and contractors to give you the best
possible service.


Executive FBS Team

President - Thomas Irmiter, Certified MN Building Official-limited - teirmiter@forensicbuildingscience.com

Director of Forensic Engineering - Michael Opela, Sr., PE AZ #41084 - mopela@forensicbuildingscience.com

Engineering  - Bryan Oakley, PE (MN & WI) - bryantoakley@forensicbuildingscience.com

Senior Project Manager - Greg Crawford - gwcraw@forensicbuildingscience.com

Project Manager - Ryan Nierengarten - rnierengarten@forensicbuildingscience.com

Executive Assistant - Hannah Brown - hannahadams81@forensicbuildingscience.com