Proper Way To Shingle A Roof Valley

One nail goes into the top section of the shingle where it covers the valley metal.

Proper way to shingle a roof valley.

Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing. Imbed each step flashing in a 75 mm 3 wide application of asphaltic plastic cement and nail in place. Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley.

The original plan was to preserve a portion of the existing roof since. When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley. Each flashing should overlap the one below by at least 75 mm 3 but not be visible below the shingle top lap. Only nail at the edges with only enough nails to.

Place the nails along the edge of the valley metal not into it. Then starting at the base of the. Ensure ice and water protector has been installed along the valley first. In addition it is important to avoid nailing the shingles through the valley metal.

How to shingle a roof 90 pics pro tips recommendations step 1. All valleys start the same. Remove existing roof and underlayment. 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.

Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. Butt a full shingle up against the cut shingle and nail into place. There are two simple rules to follow. This picture gives you an idea of the condition of the existing roof plywood and you.

To secure the roof valley flashing nail it down carefully.