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.
Roof valley leak.
The edges are finished in a similar fashion to garcia s method.
Fast forward to october of 2019 we start to have a rodent problem in our home.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
The sealants and roof pitch used can crack and chip away over time.
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.
Shingles are then bedded in cement going up the valley.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.
If a metal flashing has been used the most common problem is that the shingles were improperly cut.
Valley areas are prone to leak due to the lack of using proper materials.
Valley roofing did an excellent job when they installed a new roof in my home back in august of 2019.
Many roof valley leaks are caused by roofing nails that have been poorly placed and are acting as a dripper feeding water through from the roof above.
Start low soaking the area just above where the leak appears in the house.
Roof leaks in a valley can be prevented.
Isolate areas when you run the hose.
And damaged flashing is behind most roof leaks.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Roof cement should be dabbed under the shingle corners.
Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.
If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly.