Proper Way To Shingle A Roof Valley

In addition it is important to avoid nailing the shingles through 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. Only nail at the edges with only enough nails to. Laminated shingles let you start in the valley and work outward which can be an advantage in some situations. 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.

Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. To secure the roof valley flashing nail it down carefully. Ensure ice and water protector has been installed along the valley first. 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. Each flashing should overlap the one below by at least 75 mm 3 but not be visible below the shingle top lap. The original plan was to preserve a portion of the existing roof since. Then starting at the base of the.

When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley. 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. Butt a full shingle up against the cut shingle and nail into place.

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. 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. There are two simple rules to follow. One nail goes into the top section of the shingle where it covers the valley metal.

All valleys start the same.