Installing Metal Roof Valley Flashing

Make sure to cover the gap at the bottom of the raised ridge.

Installing metal roof valley flashing.

Some roofers cut the shingles parallel to the flashing s center ridge. 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. A batten is a roofing component made of a thin layer of metal plastic or wood and is used as a fixing point for roof tiles and roofing sheets. Apply an approximately 3 inch.

Cut the bottom edge and fold it down over the drip edge. Snipping off the corners of. Place the flashing on the upper portion or the upper flange of the batten. Recommended procedures of basic valley flashing installation.

Others start with a 3 inch wide. Remember to caulk the underside of the flashing with a sealant. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Use 1 inch galvanized roofing nails.

Install an underlayment centered in the roof valley. Fold the top of the flashing over the ridge. Install the valley battens on the sides of the roof that you want to place the valley flashing. Step 6 install the flashing.

Attach the flashing panel in place at the bottom. 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. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. How to do it determine cuts.

Lay the flashing down in the roof valley and start at the lower end of the roof. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch.