Valley Flashing Roof Installation

Roof cement should be dabbed under the shingle corners.

Valley flashing roof installation.

Remember to caulk the underside of the flashing with a sealant. Fold the top over the roof ridge and cut the bottom along the drip edge metal. The edges are finished in a similar fashion to garcia s method. Our team also possesses a great deal of expertise in steep slope operations that include tile standing seam metal and the likes.

In this video i show you how i do the valleys on a shingle roof. Many roofers cut the shingles across because they say it s safer. Install an underlayment centered in the roof valley. Stop nailing 6 inches from the center.

Shingle the other side of the valley the same way. Attach the flashing panel in place at the bottom. Install valley battens on both ends of the roof valley then attach first flashing 3 4 inches over the roof flange and another 3 4 inches over the fascia if any is present. Shingles are then bedded in cement going up the valley.

Wright roofing is a full service roofing contractor in glendale specializing in large scale commercial low slope roofing projects as well as residential roofing projects. The installer fabricates simple clips or valley flashing cleats whose bent edge interlocks with the folded over or hemmed edges of the metal roof valley flashing to secure the valley to the roof deck. Use 1 inch galvanized roofing nails. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.

First clean the debris out of the valley including sawdust nails and whatever else is in there. Details concrete masonry roofing wrb flashing. Then install a non corrosive metal valley flashing of 24 minimum width. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.

Two ways to flash roof edges. With a clean valley you can lay down some peel and stick roofing membrane. Use roof valley cleats at intervals of 24 o c. Now nail this first flashing at both its far ends.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. One common method is to lay the edge metal under the eaves membrane and over the rake. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Lay the flashing down in the roof valley and start at the lower end of the roof. Step 6 install the flashing. Recommended procedures of basic valley flashing installation.

Roof one side of the valley running the shingles across it. This method is a similar method to what mike guertin calls a long island valley which runs shingles from the first slope past the valley and up the second slope.