Roof flashing is installed at transitions and penetrations where roofing materials meet other surfaces, such as walls, chimneys, or vents. Its purpose is to help direct water away from vulnerable areas.
Many roof leaks originate at flashing details rather than in the field of the roofing material. Proper integration of flashing helps manage water flow at these intersections.
Understanding the role of flashing provides context for why these areas receive attention during inspections and maintenance.
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Inspector Howe provides general educational information only. Content is not a substitute for professional inspection, engineering, legal, or code compliance services.