Valleys on between two slanted roofs causes leaks very often.
Valley roof flashing leak.
In order to lay the flashing the shingles on the roof will have to be removed.
The materials they use in valleys are inferior.
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.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
Step 2 remove the shingles.
We may not know how to spell but roofing we know best.
We have been in the roofing business for 25 years.
If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly.
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.
And damaged flashing is behind most roof leaks.
A roof valley is very prone to leaks especially if you have an older roof.
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.
Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.
Some shingles and flashing may need to be removed and replaced but the roof can usually be saved with a good quality repair.