How To Shingle A Valley Roof

The next shingle should be directly atop the first one.

How to shingle a valley roof. Extend the 3 tab shingles on one of the roof s planes past the valley at least 12 inches. Weaving a shingle valley by dunn contracting 727 410 5717 james dunn. Valleys are a prime leak area so it s important to be careful. Each successive shingle should be then placed with a six inch overlap or until the adhesive strip contacts the bottom of the shingle tabs.

Continue until you reach the top edge of the valley roof. 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. In order to shingle this kind of roof valley a roofing professional has to install both roof faces at the same time which is quite slow. 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.

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. From this starter shingle continue moving up the valley roof. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.