Almost any water leak will result in water raining down onto the walls, ceilings and floor. In most cases, this water will eventually make its way to the floor, where it can sit and cause damage for a while. Water infiltration is one of the most common causes of structural failure in buildings, and it can happen quickly if you don’t take action. When you have a water leak, it’s important to determine how long it will take for the ceiling to dry. This information will help you decide what repairs or replacements are necessary.