Step 2 remove the shingles.
How to repair valley flashing on roof.
Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing.
This video shows the water proofing paper that we installed after re.
The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.
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.
First roughen the area around the hole with a wire brush or sandpaper and then clean it.
If leaks continue to occur from ice dams consider installing roof edge heating cables.
Remember to caulk the underside of the flashing with a sealant.
How to install roofing paper in a valley section and install the valley flashing on top.
Check the entire roof valley carefully to locate the source of these problems.
And you can tar it but it s a real stop gap band aid like measure.
In order to lay the flashing the shingles on the roof will have to be removed.
A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.
Install valley battens on both ends of the roof valley then attach first flashing 3 4 inches over the roof flange and another 3 4 inches over the fascia if any is present.
Now nail this first flashing at both its far ends.
Step 6 install the flashing.
The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.
How to repair roof flashing small holes or corroded spots in flashing can be easily repaired.
Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal cutters.
If this is a repair job the siding must also be removed and replaced with the flashing.
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.
Cut each side at the upper end of the valley to conform with the.
