Roofing Shingles How To Install Valleys

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Roofing shingles how to install valleys.

For better results try to use full size shingles going into a closed valley one without metal flashing as this can eliminate nailing too close to the centerline. 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. Only nail at the edges with only enough nails to. Strip of wsu along the eaves edges and i crosslap the strips at the valley.

These strips go under the drip edge. 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. As with any asphalt shingling job i install a 9 in. The open woven and closed cut methods are demonstrated.

How to do it. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Valleys are a prime leak area so it s important to be careful. To secure the roof valley flashing nail it down carefully.

Closed valleys are completed during shingle installation. I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time. For longer roof performance iko strongly recommends open metal valleys. With underlayment and flashing installed apply shingles up to one side of the flashing.

Do not drive nails into the flashing.