Proper Way To Shingle A Roof Valley

How to shingle a roof 90 pics pro tips recommendations step 1.

Proper way to shingle a roof valley.

The original plan was to preserve a portion of the existing roof since. Imbed each step flashing in a 75 mm 3 wide application of asphaltic plastic cement and nail in place. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. One nail goes into the top section of the shingle where it covers the valley metal.

Butt a full shingle up against the cut shingle and nail into place. There are two simple rules to follow. However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed. Remove existing roof and underlayment.

Only nail at the edges with only enough nails to. When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley. Ensure ice and water protector has been installed along the valley first. Place the nails along the edge of the valley metal not into it.

Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing. All valleys start the same. To secure the roof valley flashing nail it down carefully.

Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. 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. In addition it is important to avoid nailing the shingles through the valley metal. Each flashing should overlap the one below by at least 75 mm 3 but not be visible below the shingle top lap.

Then starting at the base of the.