Doug has completed all of the requirements and is certified by InterNACHI (International Association of Certified Home Inspectors) as a residential/commercial Infrared Certified Inspector, authorized to diplay the Infrared Certified logo.  With proper training, infrared thermal imaging is a powerful tool to detect a multitude of residential and commercial building deficiencies.  However, a lack of training can simply produce bad or confusing information.  An operator must understand the capabilities and limitations of the technology and have a comprehensive understanding of building construction.  Be sure you hire a Infrared Certified Inspector.