John McKenna has 25 years of experience as a construction contractor, 15 years' experience as a Texas-licensed professional home inspector, and eight years' experience as a certified building thermographer. He is a member of the Master Inspector Certification Board (MICB), a Certified Master Inspector®, a certified FLIR-ITC building thermographer, a TREC-approved instructor, an InterNACHI thermal imaging instructor, the owner of an Infrared-Certified® training school, the producer of various infrared webinars and podcasts, a Building Science and Level II Certified Thermographer, and an InterNACHI member since 2006.