08 - ROOF FLASHING

Send us Fan MailFlashing is where roofs most commonly fail - making this one of the most critical episodes in our series. We begin with roof penetration flashing including boots (roof jacks) for plumbing vents, appliance vents, and exhaust ducts. Learn about material compatibility, proper sizing, and why lead boots outlast neoprene alternatives by decades. Next, we dive deep into sidewall and headwall flashing - the two-component systems using base flashing and counterflashing that must integrate with both roof covering and wall drainage planes. Discover the importance of step flashing for sidewalls, proper installation heights, and why mechanically attached or caulk-secured counterflashing requires regular maintenance. We examine flashing for different wall materials including siding, brick veneer (with stepped counterflashing installed in mortar joints), and stucco (using weep screeds). Learn why kick-out flashing at sidewall terminations is essential for preventing water damage - and why its absence is reportable regardless of house age. This episode identifies typical defects, proper installation methods, and the critical details that separate leak-free roofs from problem roofs. A must-listen for anyone serious about roofing quality.Intro This episode is brought to you by GetSync.pro This episode is hosted by Charlie Bellefontaine of Chicagoland Home InspectorsFor complete training with visual materials, practice exams, and certification support, visit nhiexamprep.com© 2025 National Home Inspector Exam Prep Podcast. All rights reserved.