Valley Flashing Roof Installation

Roof one side of the valley running the shingles across it.

Valley flashing roof installation. First clean the debris out of the valley including sawdust nails and whatever else is in there. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. 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. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.

Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Stop nailing 6 inches from the center. Use 1 inch galvanized roofing nails. One common method is to lay the edge metal under the eaves membrane and over the rake.

Now nail this first flashing at both its far ends. With a clean valley you can lay down some peel and stick roofing membrane. We have experience in working at healthcare industrial restaurant educational facilities. Using clips permits movement in the valley as temperatures change.

Then install a non corrosive metal valley flashing of 24 minimum width. 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. The edges are finished in a similar fashion to garcia s method. Recommended procedures of basic valley flashing installation.

Our team also possesses a great deal of expertise in steep slope operations that include tile standing seam metal and the likes. Use roof valley cleats at intervals of 24 o c. Attach the flashing panel in place at the bottom. Lay the flashing down in the roof valley and start at the lower end of the roof.

In this video i show you how i do the valleys on a shingle roof. Shingles are then bedded in cement going up the valley. Install an underlayment centered in the roof valley. No one of this affirmat.

Remember to caulk the underside of the flashing with a sealant. Step 6 install the flashing. Roof cement should be dabbed under the shingle corners. 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.

Details concrete masonry roofing wrb flashing. 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. Two ways to flash roof edges. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.