Others start with a 3 inch wide.
Shingle roof valley installation.
Then starting at the base of the.
Snipping off the corners of.
To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.
To secure the roof valley flashing nail it down carefully.
This video demonstrates the proper installation technique for installing roofing valleys.
Ensure ice and water protector has been installed along the valley first.
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.
How to do it determine cuts.
Only nail at the edges with only enough nails to.