Roofing Shingles How To Install Valleys

Ensure ice and water protector has been installed along the valley first.

Roofing shingles how to install valleys.

Then starting at the base of the. I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time. The open woven and closed cut methods are demonstrated. As with any asphalt shingling job i install a 9 in.

Strip of wsu along the eaves edges and i crosslap the strips at the valley. Valleys are a prime leak area so it s important to be careful. Do not drive nails into the flashing. 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. 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. With underlayment and flashing installed apply shingles up to one side of the flashing.

To secure the roof valley flashing nail it down carefully. Complete the application of underlayment and valley flashing before the roofing shingles are applied. Closed valleys are completed during shingle installation. Only nail at the edges with only enough nails to.

How to do it.