Roofing W Valley Flashing

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Roofing w valley flashing.

When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter. Nrca lile recommends that roof valley flashing metal for open roof valleys should be 26 gauge 0 45mm galvanized steel or equivalent noncorrosive nonstaining metal. Cut the top layer of shingles along the chalkline. Get free shipping on qualified valley flashing roof flashing or buy online pick up in store today in the building materials department.

Step 9 cut corners and apply cement. Slip a piece of sheet metal flashing under the top layer of shingles to protect the bottom layer in the valley while you cut the shingles with a hook blade. Be sure to check local building codes to ensure you have the proper width for your application. Overview w valley flashing protects the critical area of your roof where two slopes come together to form a valley.

With a clean valley you can lay down some peel and stick roofing membrane. Clip the top corner of shingles along valleys to keep water flow toward center of valley. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Fold the top over the roof ridge and cut the bottom along the drip edge metal.