Roof Valley Leak

Most roofers that do shingles will use a heavy base paper instead of a rubber membrane.

Roof valley leak.

Most shingle installers will use a thick 30 lb paper as a base for the valley. In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing. The edges are finished in a similar fashion to garcia s method. Start low soaking the area just above where the leak appears in the house.

If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. And damaged flashing is behind most roof leaks. Valley areas are prone to leak due to the lack of using proper materials.

Isolate areas when you run the hose. Roof cement should be dabbed under the shingle corners. Shingles are then bedded in cement going up the valley. Valley roofing did an excellent job when they installed a new roof in my home back in august of 2019.

If a metal flashing has been used the most common problem is that the shingles were improperly cut. The sealants and roof pitch used can crack and chip away over time. This method is a similar method to what mike guertin calls a long island valley which runs shingles from the first slope past the valley and up the second slope. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.

Roof leaks in a valley can be prevented. Fast forward to october of 2019 we start to have a rodent problem in our home. We call an exterminator and he notices that the mesh for the chimney the eaves and gable vents are missing allowing rodents to enter my home trough the roof.