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.

Take care not to place any fasteners in the exposed center area of the metal flashing. Get free shipping on qualified valley flashing roof flashing or buy online pick up in store today in the building materials department. Cut the top layer of shingles along the chalkline. Clip the top corner of shingles along valleys to keep water flow toward center of valley.

Overview w valley flashing protects the critical area of your roof where two slopes come together to form a valley. Be sure to check local building codes to ensure you have the proper width for your application. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Step 9 cut corners and apply cement.

Lile points out that valleys lined with roll roofing are not as durable. When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter. 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. With a clean valley you can lay down some peel and stick roofing membrane.