What is the primary purpose of kickout flashing?

The primary purpose of kickout flashing is to prevent water from entering the wall system. It is specifically designed to redirect water away from the roofline and direct it toward the gutter or eaves. When water flows down the slope of a roof and meets a wall or vertical surface, kickout flashing plays a crucial role in guiding that water outward, ensuring it does not seep behind the wall. This is essential in preventing moisture-related issues such as mold growth, decay, and structural damage to the building's wall system. Proper installation of kickout flashing is vital for effective water management and overall roof performance, especially in areas where rooflines intersect with walls.