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.

One nail goes into the top section of the shingle where it covers the valley metal. In addition it is important to avoid nailing the shingles through the valley metal. 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. This picture gives you an idea of the condition of the existing roof plywood and you.

Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. Butt a full shingle up against the cut shingle and nail into place. How to shingle a roof 90 pics pro tips recommendations step 1. Laminated shingles let you start in the valley and work outward which can be an advantage in some situations.

The original plan was to preserve a portion of the existing roof since. Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing. There are two simple rules to follow. Place the nails along the edge of the valley metal not into it.

Remove existing roof and underlayment. Only nail at the edges with only enough nails to. Ensure ice and water protector has been installed along the valley first. 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.

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. All valleys start the same. Imbed each step flashing in a 75 mm 3 wide application of asphaltic plastic cement and nail in place.

To secure the roof valley flashing nail it down carefully.