Step 6 shingle valley.
How to shingle a valley roof.
From this starter shingle continue moving up the valley roof.
Continue until you reach the top edge of the valley roof.
The open woven and closed cut methods are demonstrated.
Weaving a shingle valley by dunn contracting 727 410 5717 james dunn.
A woven valley shingle installation has other drawbacks including that they are slow to install especially in cold weather and more difficult to repair than the other types.
Secure all of the 3 tab shingles to the roof plane with the 1 inch roofing nails using the local building codes as a placement guide except for the shingles covering the flashing material.
Valleys are a prime leak area so it s important to be careful.
The next shingle should be directly atop the first one.
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.
Extend the 3 tab shingles on one of the roof s planes past the valley at least 12 inches.
Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.