Laying Shingles In Roof Valleys

Nail the shingles 5 cm back.

Laying shingles in roof valleys.

For asphalt shingles aluminum flashings are recommended. Lay the second row of shingles. Ensure ice and water protector has been installed along the valley first. Set the first shingle of the second row back a half tab 6 inches 17 centimeters from the edge of first shingle on the first row and so that the bottom of its tabs just touches the tops of the cutout slots on the shingle below.

Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves. This 1 2 tab has to be cut off where it hangs off the left edge of the gable roof. Starting at the bottom of the roof map out a guideline with chalk. 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.

Valleys are a prime leak area so it s important to be careful. Lay shingles and mark center roof one side of the valley running the shingles across it. To secure the roof valley flashing nail it down carefully. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Only nail at the edges with only enough nails to. Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. Then starting at the base of the.

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. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. The metal should be at least 0 019 inches thick. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.

Flashed open valleys may be more durable and water resistant than blind alleys in which the shingles overlap from one plane to the other and cover the valley. Quick guide how to install an open valley.