How To Shingle A Roof Valley

One layer of shingles actually crosses the valley beneath the other.

How to shingle a roof valley.

Step 4 determine shingle lines. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Step 2 install metal flashing. When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley.

Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. How to shingle a valley roof. To secure the roof valley flashing nail it down carefully. This flashing must be about 18.

Valleys are a prime leak area so it s important to be careful. 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. Step 3 apply mineral roofing felt. Only nail at the edges with only enough nails to.

Then starting at the base of the. 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. For closed cut valleys shingles on one roof plane are installed through a valley and extended at least 30 cm into the intersecting plane. Step 1 snap chalk line.

Before you begin laying down the shingles it must be protected with a metal flashing. All valleys start the same. Ensure ice and water protector has been installed along the valley first.