Step 3 remove the debris.
How to fix a leaking tile roof valley.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
Then re tile your roof.
If you have a roof leak it may well be through the valley.
These valleys dam up over a few years within metal valleys.
And damaged flashing is behind most roof leaks.
If the ice and water shield is missing then you will have to remove the shingles on both sides along the valley put ice and water shield in place and re shingle the roof.
Water damming is a common cause of tile roof leaks and are usually associated with the older version of valley metals used in roof applications before 2003.
Keep in mind that clay roof tiles break easily under pressure so be very careful when walking on your roof to determine the cause of the leak.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.
You may need the help of a professional for removal and re tiling.
The roof valleys especially the closed ones collect a lot of debris.
This video shows the full repair from removing leaded va.
This is where two parts of the roof join.
If the problem is in the waterproof membrane you will need to remove all your existing tiles and replace the old membrane with a new one.
Tile valleys and water overflow.