Start at the lower end of the valley.
How to replace a valley on a roof.
I have my valley custom made with water trough to help with leaking b.
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.
Shingle the other side of the valley the same way.
Begin by placing the replacement piece of flashing in the valley lining up the groove in the center with the middle of.
This video shows how to repoint a lead roof valley.
Use a metal cutter to alter the length of the flashing to ensure it lines up with your roof s lower edges.
Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.
Roof one side of the valley running the shingles across it.
Place the new piece of sheet metal valley flashing in the valley with the raised center aligned with the center of.
A scaffold tower has been used for access in this video.
Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.
Here s how to install new flashing in your roof valleys.
Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal.
A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.