Z-Bar flashing is a metal flashing shaped like the letter "Z," designed to provide a protective barrier against water infiltration in various construction applications. Commonly used above windows, doors, and horizontal siding transitions, it helps redirect water away from vulnerable areas, preventing moisture damage and extending the lifespan of the structure. Made from galvanized steel, Z-Bar flashing is an essential component in weatherproofing, ensuring that water does not seep behind exterior finishes or compromise building integrity.