A roof valley can be formed when two opposing sloped roof planes meet.
Shingle roof valley leak repair.
In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.
This repair process is also the same for composition and tile roofs.
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.
Remove 8 inches of shingles at each side of the valley with a 16 inch nail bar.
Start at the upper row of shingles at the upper end of the valley.
And damaged flashing is behind most roof leaks.
These instructions should now allow you to repair a leaking roof valley on a roof with woven shingles.
Some shingles and flashing may need to be removed and replaced but the roof can usually be saved with a good quality repair.
Replace cracked broken or rotted shingles with the new ones you purchased.
If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly.
Leaking valleys are some of the most common type of roofing leaks a home can have.
A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof.
Insert the bar under a shingle and pry upward at a.
The sealants and roof pitch used can crack and chip away over time.
They can also be some of the most difficult leaks to track down and repair.