Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.
Shingle roof valley installation.
This video demonstrates the proper installation technique for installing roofing valleys.
The open woven and closed cut methods are demonstrated.
Snipping off the corners of.
To secure the roof valley flashing nail it down carefully.
Others start with a 3 inch wide.
Ensure ice and water protector has been installed along the valley first.
How to do it determine cuts.
I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner.
Then starting at the base of the.