Proper Way To Shingle A Roof Valley

As the asphalt shingles are installed over the roof deck the shingles are extended into the valley.

Proper way to shingle a roof valley.

From the stepped off main part of the roof run shingles into the valley and cut them square from where the bottom corner intersects with the shingles nailed along the valley line. Only nail at the edges with only enough nails to. Remove existing roof and underlayment. Then starting at the base of the.

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. Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing. How to shingle a roof 90 pics pro tips recommendations step 1. When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley.

Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. One nail goes into the top section of the shingle where it covers the valley metal. There are two simple rules to follow.

Place the nails along the edge of the valley metal not into it. Imbed each step flashing in a 75 mm 3 wide application of asphaltic plastic cement and nail in place. The original plan was to preserve a portion of the existing roof since. Each flashing should overlap the one below by at least 75 mm 3 but not be visible below the shingle top lap.

This picture gives you an idea of the condition of the existing roof plywood and you. In addition it is important to avoid nailing the shingles through the valley metal. All valleys start the same. However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed.

Ensure ice and water protector has been installed along the valley first.