Roofing W Valley Flashing

Be sure to check local building codes to ensure you have the proper width for your application.

Roofing w valley flashing.

Clip the top corner of shingles along valleys to keep water flow toward center of valley. Cut the top layer of shingles along the chalkline. Step 9 cut corners and apply cement. First clean the debris out of the valley including sawdust nails and whatever else is in there.

Get free shipping on qualified valley flashing roof flashing or buy online pick up in store today in the building materials department. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Take care not to place any fasteners in the exposed center area of the metal flashing.

Overview w valley flashing protects the critical area of your roof where two slopes come together to form a valley. Lile points out that valleys lined with roll roofing are not as durable. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter.