Roofing Shingles How To Install Valleys

To secure the roof valley flashing nail it down carefully.

Roofing shingles how to install valleys.

These strips go under the drip edge. 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. How to do it.

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. Do not drive nails into the flashing. The open woven and closed cut methods are demonstrated. 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.

Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing 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. I overlap the inside corner of the drip edge at the valley to minimize sharp edges that could cut into the wsu over time. Valleys are a prime leak area so it s important to be careful.

Strip of wsu along the eaves edges and i crosslap the strips at the valley. Closed valleys are completed during shingle installation. Complete the application of underlayment and valley flashing before the roofing shingles are applied. Only nail at the edges with only enough nails to.

With underlayment and flashing installed apply shingles up to one side of the flashing.