Making A Roof Valley

Plus cutting the closed cut valley shingles can happen after the rest of the roof is shingled.

Making a roof valley.

I begin the second side the side that will be cut by snapping a cutline 2 in. Position an extension ladder against the lower edge of the roof near the valley that is repaired. Only nail at the edges with only enough nails to. This video demonstrates the proper installation technique for installing roofing valleys.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Start at the upper row of shingles at the upper end of the. Make metal roof valley clips cleats. To secure the roof valley flashing nail it down carefully.

On the common rafters the plumb cut is marked with a framing square for a 12 in 12 pitch 45 and cut square i e no bevel. Ensure ice and water protector has been installed along the valley first. To keep the porch roof framing as simple as possible we installed a structural ridge. With a closed cut valley there s no need to shingle the two roof planes at the same time.

Get some of the flashing material that matches your valley flashing in metal and thickness. Fold the top over the roof ridge and cut the bottom along the drip edge metal. From the valley center. With a clean valley you can lay down some peel and stick roofing membrane.

Measure the width of the sheet metal valley flashing. Cut some strips the dimensions are not critical maybe 3 4 to 1 1 2 wide x roughly 5 6 long. The open woven and closed cut methods are demonstrated. Typical valley flashing is 14 inches wide.

Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the. Then starting at the base of the.