What are the common causes of water damage in ceilings and how can it be prevented or repaired effectively?

Common causes of water damage in ceilings include leaking roofs, burst pipes, and condensation buildup. To prevent water damage, regular roof inspections, prompt repair of leaks, and proper ventilation can help. Repairing water damage in ceilings involves identifying the source of the leak, drying the affected area thoroughly, and replacing any damaged materials.