Check the entire roof valley carefully to locate the source of these problems.
Valley roof flashing leak.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
Step 2 remove the shingles.
Some shingles and flashing may need to be removed and replaced but the roof can usually be saved with a good quality repair.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.
Flashing is the key to a skylight that won t leak water into the roof cutting a hole in a perfectly water tight roof is asking for trouble.
The materials they use in valleys are inferior.
And damaged flashing is behind most roof leaks.
We have been in the roofing business for 25 years.
When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes.
Repairing a valley area on a shingle roof.
Valleys on between two slanted roofs causes leaks very often.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
In order to lay the flashing the shingles on the roof will have to be removed.
Most roofers know how to install shingles but many have no clue how to do a valley.
Once the roof valley has begun to leak you will need to cover the valley with flashing in order to prevent a repeat of the problem.
Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.