When a building envelope system is presenting major problems or evidencing catastrophic or severe failure, whether due to construction, design, or material defects, natural disaster, or other causes, a forensic investigation of building envelope components may be necessary to thoroughly diagnose and properly design remediation for building envelope problems. BET&R's failure analysis services include moisture intrusion investigations, water testing, laboratory microscopy work, destructive and non-destructive testing and sampling, photographic documentation, and comprehensive presentations of findings. Failure analysis is often a preliminary step in litigation support and dispute resolution projects, as well as in projects involving disaster relief and federal government or insurance coverage negotiations. Failure analysis also often proceeds comprehensive repair and retrofit design work. Whatever the Client's next step may be, failure analysis provides a sound, detailed understanding of the issues from which to work.