Install Valley Flashing Metal Roof

First clean the debris out of the valley including sawdust nails and whatever else is in there.

Install valley flashing metal roof.

Some roofers cut the shingles parallel to the flashing s center ridge. No one of this affirmat. Others start with a 3 inch wide. Best practices for sealing the metal roof valley vary based on the slope of the roof.

Now nail this first flashing at both its far ends. Lay the flashing down in the roof valley and start at the lower end of the roof. Recommended procedures of basic valley flashing installation. Install an underlayment centered in the roof valley.

How to do it determine cuts. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Many roofers cut the shingles across because they say it s safer. Snipping off the corners of.

Apply an approximately 3 inch. Remember to caulk the underside of the flashing with a sealant. Use 1 inch galvanized roofing nails. Attach the flashing panel in place at the bottom.

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. In this video i show you how i do the valleys on a shingle roof. I have my valley custom made with water trough to help with leaking b. 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.

Install synthetic roofing. With a clean valley you can lay down some peel and stick roofing membrane. 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. The top joinery of both valleys when they meet on the same plane of roof is shown here.

Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.