Before

After

Water Damage to Local School

One thing to consider is whether the leak occurs only in inclement weather. If the leak is constant, regardless of whether it is raining outside or not, then you can probably eliminate the roof as being the source of the leak. That’s because if that leak is caused by the rain, then the rain would have come from the roof through the ceiling. In this case the leak is most likely caused by a plumbing line inside the house or structure. If you have determined that the leak is possibly from the roof, start at the top and work your way down. Be sure to take all the necessary precautions, and have all required safety gear needed for a roof inspection.