Install Valley Flashing Metal Roof

Install an underlayment centered in the roof valley.

Install valley flashing metal roof.

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. In this video i show you how i do the valleys on a shingle roof. With a clean valley you can lay down some peel and stick roofing membrane. Remember to caulk the underside of the flashing with a sealant.

Some roofers cut the shingles parallel to the flashing s center ridge. First clean the debris out of the valley including sawdust nails and whatever else is in there. The top joinery of both valleys when they meet on the same plane of roof is shown here. No one of this affirmat.

How to do it determine cuts. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Recommended procedures of basic valley flashing installation. Now nail this first flashing at both its far ends.

Apply an approximately 3 inch. Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. I have my valley custom made with water trough to help with leaking b.

Attach the flashing panel in place at the bottom. Others start with a 3 inch wide. Best practices for sealing the metal roof valley vary based on the slope of the roof. Snipping off the corners of.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Use 1 inch galvanized roofing nails. Many roofers cut the shingles across because they say it s safer. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.

Step 6 install the flashing.