Roofing Shingles How To Install Valleys

How to do it.

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. Ensure ice and water protector has been installed along the valley first. 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. To secure the roof valley flashing nail it down carefully.

Only nail at the edges with only enough nails to. For longer roof performance iko strongly recommends open metal valleys. Then starting at the base of the. With underlayment and flashing installed apply shingles up to one side of the flashing.

These strips go under the drip edge. Closed valleys are completed during shingle installation. Do not drive nails into the flashing. Valleys are a prime leak area so it s important to be careful.

As with any asphalt shingling job i install a 9 in. 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. Strip of wsu along the eaves edges and i crosslap the strips at the valley. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.

I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time.