How To Install Metal Roof Valley Flashing

Use 1 inch galvanized roofing nails.

How to install metal roof valley flashing.

Step 6 install the flashing. Remember to caulk the underside of the flashing with a sealant. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Recommended procedures of basic valley flashing installation.

I have my valley custom made with water trough to help with leaking b. 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. Apply an approximately 3 inch.

No one of this affirmat. 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. Fold the top of the flashing over the ridge. Install an underlayment centered in the roof valley.

How to do it determine cuts. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch. Now nail this first flashing at both its far ends. Cut the bottom edge and fold it down over the drip edge.

Others start with a 3 inch wide. Some roofers cut the shingles parallel to the flashing s center ridge. 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.

The top joinery of both valleys when they meet on the same plane of roof is shown here. Use tape sealant between the valley trim and the panel. Steep slope roofs slope greater than 3 12 cut the panels at an angle for the valley then bend the hem end of the panel and hook it with a cleat. Snipping off the corners of.

Lay the flashing down in the roof valley and start at the lower end of the roof.