Install replacement shingles at each side of the valley such as composition shingles or wood shingles that match the existing shingles.
Roof shingles on a valley.
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.
As the asphalt shingles are installed over the roof deck the shingles are extended into the valley.
Shingle the other side of the valley the same way.
Laminated shingles let you start in the valley and work outward which can be an advantage in some situations.
When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley.
Starting at the bottom edge of the valley begin laying down the shingles.
However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed.
In addition it is important to avoid nailing the shingles through the valley metal.
Roof one side of the valley running the shingles across it.
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.
Align the lower edge of each shingle with the lower edges.
Then starting at the base of the.
Place a roofing nail in each corner and one in the center on its appropriate side.
Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.
Cut the tabs off of one shingle and lay it on the bottom edge with a 1 4 inch overhang.
To secure the roof valley flashing nail it down carefully.
Press the shingle into the valley and make sure that it is flat against the surface of the roof.
Only nail at the edges with only enough nails to.
All valleys start the same.