Roofing Dormer Valley Flashing

Take care not to place any fasteners in the exposed center area of the metal flashing.

Roofing dormer valley flashing.

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. 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.

Dormer flashing 1 drip edge 10 eave flashing 8 flat shingle 1 gable flashing 7 metal sheets 1. Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic clip the top corner of shingles along valleys to keep water flow toward center of valley. Open valley shingle installation an open valley relies on metal flashing for protection.

Overview w valley flashing protects the critical area of your roof where two slopes come together to form a valley. Lay a bead of roofing cement along the shingles just below the dormer and bed the metal base flashing into it. Valley flashing band in black model dl600n 125 00 box 125 00. With a clean valley you can lay down some peel and stick roofing membrane.

Get free shipping on qualified valley flashing roof flashing or buy online pick up in store today in the building materials department. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. That flashing is left exposed so the roof has visible lines of metal running down the valley.