Joseph Hauf, P.E., is a licensed professional engineer in multiple states in the mid-Atlantic and Southeast U.S. He made his start in life safety engineering with Rolf Jensen & Associates Inc. out of its Washington office in 1988 while studying in the fire protection engineering program at the University of Maryland. He has more than 30 years of experience in life safety and fire protection engineering for complex, high-rise, and mixed-use projects in various jurisdictions in the U.S. and abroad. His extensive experience with smoke control systems and their associated infrastructure over that time paved the way for development of this insightful article. Contact him at jhauf@conquest-firespray.com.