In order to stop the leak in your roof you need to get to where the leak is occurring.
How to repair leak in roof valley.
On our ultimate roof system we install self adhering ice and water underlayment under the valley metal.
Step 2 remove the shingles.
And if they put a second layer of shingles on they brought it up the valley but they didn t replace the valley it s probably leaking and cracking and split.
When then take the lower pitched or smaller side the panel the receives the least amount of water and use that as our base.
Make a neat pile of the shingles that you will be able to continue using.
We lay an entire shingle across the valley.
Move to the highest end of the valley and work your way down cleaning.
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.
In order to lay the flashing the shingles on the roof will have to be removed.
This video shows the traditional and best way to repair a lead valley on a roof.
Carefully remove the shingles from the whole area of the leak and extend it approximately three or four feet beyond the leaking area.
Follow these three preparatory steps to get ready to fix the valley leak.
Start low soaking the area just above where the leak appears in the house.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Check the entire roof valley carefully to locate the source of these problems.
Clear any debris in the roof valley and surrounding area.
Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary.
The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.
And you can tar it but it s a real stop gap band aid like measure.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Isolate areas when you run the hose.
This method of lead valley repair is proven to not only be fast and safe wit.
A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.