Although flashings bridge transitions in the roof, when not sealed properly they are ineffective. Flashing is designed to turn corners and breaks in a roof, which tend to have more movement than other areas. If not sealed properly, these flashings do little to stop water from entering the roof system. Here are voids in the roof’s flashings where sealants were not applied correctly. This is allowing water to enter the flashing detail area. This can be repaired with minimal expense.