Install Valley Flashing Metal Roof

I have my valley custom made with water trough to help with leaking b.

Install valley flashing metal roof. 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. Lay the flashing down in the roof valley and start at the lower end of the roof. 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. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Fold the top over the roof ridge and cut the bottom along the drip edge metal. How to do it determine cuts.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Many roofers cut the shingles across because they say it s safer. 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. Use 1 inch galvanized roofing nails.

Apply an approximately 3 inch. Remember to caulk the underside of the flashing with a sealant. First clean the debris out of the valley including sawdust nails and whatever else is in there. Some roofers cut the shingles parallel to the flashing s center ridge.

Step 6 install the flashing. With a clean valley you can lay down some peel and stick roofing membrane. The top joinery of both valleys when they meet on the same plane of roof is shown here. Install an underlayment centered in the roof valley.

Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Now nail this first flashing at both its far ends. Others start with a 3 inch wide. Snipping off the corners of.

Attach the flashing panel in place at the bottom.