Gerald "Jerry" Welshans is a nationally-certified instructor and subject matter expert in building maintenance technology, energy efficient retrofits, and building science instruction. Jerry is a Level 1 Thermographer, a BPI “Super Proctor”, and holds BPI certifications for Building Analyst, Envelope Specialist, Heating Specialist, Multifamily, and all four of the Home Energy Professional job classifications. He also serves as an instructor for NSSC's Building Operator training programs. Prior to working at Penn College, Jerry was a general science and vocational teacher as well as a building maintenance staff member responsible for air distribution and heating systems in commercial buildings. In addition, Jerry is a fourth-generation retired farmer, a second-generation butcher, and a retired Rescue Officer, all of which have given him specialized emergency medical experience that proves invaluable in teaching crew safety topics.