Sometimes a roof repair job might fix one problem that's occurring with a roof but may showcase other issues that are actually separate problems from what was originally happening. There are a number of options for checking the integrity of a roof and ocassionally one issue determined by roofing contractors to need repair might actually be two separate problems. When this happens it will usually be apparent after some sort of rainy weather that makes it appear as if an already fixed problem with the roof has started up again, even though it's actually a totally separate problem.