Roofing Shingles How To Install Valleys

Where possible install three tab shingles so that the tabs falling over metal valleys or rake edges at the side of the house are at least four inches wide.

Roofing shingles how to install valleys.

Closed valleys are completed during shingle installation. These strips go under the drip edge. Then starting at the base of the. Only nail at the edges with only enough nails to.

Do not drive nails into the flashing. Strip of wsu along the eaves edges and i crosslap the strips at the valley. With underlayment and flashing installed apply shingles up to one side of the flashing. I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time.

To secure the roof valley flashing nail it down carefully. Ensure ice and water protector has been installed along the valley first. 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. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.

Complete the application of underlayment and valley flashing before the roofing shingles are applied. How to do it. As with any asphalt shingling job i install a 9 in. For longer roof performance iko strongly recommends open metal valleys.

The open woven and closed cut methods are demonstrated.