How To Replace A Valley On A Roof

Place the new piece of sheet metal valley flashing in the valley with the raised center aligned with the center of.

How to replace a valley on a roof.

A scaffold tower has been used for access in this video. Never try and work on a roof from a ladder as a. A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. 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. The top joinery of both valleys when they meet on the same plane of roof is shown here. Begin by placing the replacement piece of flashing in the valley lining up the groove in the center with the middle of. I have my valley custom made with water trough to help with leaking b.

Shingle the other side of the valley the same way. Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal. 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.

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. Stop nailing 6 inches from the center.