How To Shingle A Roof Valley

How to shingle a valley roof.

How to shingle a roof valley.

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. One layer of shingles actually crosses the valley beneath the other. When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley. Step 3 apply mineral roofing felt.

To secure the roof valley flashing nail it down carefully. All valleys start the same. Step 4 determine shingle lines. Step 1 snap chalk line.

Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. For closed cut valleys shingles on one roof plane are installed through a valley and extended at least 30 cm into the intersecting plane. Valleys are a prime leak area so it s important to be careful. Step 2 install metal flashing.

Before you begin laying down the shingles it must be protected with a metal flashing. The open woven and closed cut methods are demonstrated. Shingles from the other side are run through the valley center line and cut along a line parallel to and 4 cm from the center line. 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.

Step 5 install. Then starting at the base of the. Only nail at the edges with only enough nails to.