Roofing Shingles How To Install Valleys

Valleys are a prime leak area so it s important to be careful.

Roofing shingles how to install valleys.

Only nail at the edges with only enough nails to. Complete the application of underlayment and valley flashing before the roofing shingles are applied. How to do it. The open woven and closed cut methods are demonstrated.

Strip of wsu along the eaves edges and i crosslap the strips at the valley. Ensure ice and water protector has been installed along the valley first. Then starting at the base of the. With underlayment and flashing installed apply shingles up to one side of the flashing.

Do not drive nails into the flashing. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. To secure the roof valley flashing nail it down carefully. As with any asphalt shingling job i install a 9 in.

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. For longer roof performance iko strongly recommends open metal valleys. 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. I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time.

These strips go under the drip edge.