How To Shingle A Roof Valley

Shingles from the other side are run through the valley center line and cut along a line parallel to and 4 cm from the center line.

How to shingle a roof valley.

Then starting at the base of the valley center your first piece of flashing in the valley. One layer of shingles actually crosses the valley beneath the other. This will help determine how the shingles will lay on the roof width. 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.

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. Shingle the other side of the valley the same way. Roof one side of the valley running the shingles across it. How to shingle a valley with architectural shingles.

To secure the roof valley flashing nail it down carefully. Ensure ice and water protector has been installed along the valley first. Press the shingle into the valley and make sure that it is flat against the surface of the roof. Stop nailing 6 inches from the center.

Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Cut the tabs off of one shingle and lay it on the bottom edge with a 1 4 inch overhang. Fold the top over the roof ridge and cut the bottom along the drip edge metal. If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row.

For closed cut valleys shingles on one roof plane are installed through a valley and extended at least 30 cm into the intersecting plane. First clean the debris out of the valley including sawdust nails and whatever else is in there. Measure the length of a shingle as it lies across the roof. With a clean valley you can lay down some peel and stick roofing membrane.

Place a roofing nail in each corner and one in the center on its appropriate side. Valleys are a prime leak area so it s important to be careful. The open woven and closed cut methods are demonstrated. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.