CHRISTOPHER J. NAUM, SFPE a Firehouse® contributing editor, is a 36-year fire service veteran and a national instructor, author and lecturer. He is an authority on building construction issues affecting the fire and emergency services and a former fire command officer, architect and fire protection engineer. Naum is a technical reviewer to the NIOSH firefighter fatality investigation and prevention program and NFFF Firefighter Safety Advocate. Naum is the executive producer of buildingsonfire.com, a site dedicated to building construction, fire command and firefighter safety. He can be contacted at firstname.lastname@example.org or at buildingsonfire.com. For expanded articles, follow his blog column of Firehouse.com and on Facebook at Buildingsonfire.