The answer to 'what causes flashing repair' is that flashing - the metal or plastic pieces installed around chimneys, vents, and roof edges to prevent leaks - can become damaged or deteriorated over time, requiring repair or replacement. This is often caused by factors like weather exposure, improper installation, or general wear and tear. Damaged flashing can allow water to penetrate the roof, leading to leaks, rot, and other serious issues if not addressed promptly.
Homeowners should regularly inspect their roof flashing and address any signs of damage, such as cracks, holes, or loose/missing pieces. Repairing flashing typically involves re-sealing or replacing the affected areas to restore a weathertight seal. In some cases, the entire flashing system may need to be replaced if it has reached the end of its lifespan.