Metal Roof Valley Flashing Installation

Metal valley trim also known as metal valley flashing is beneficial because it drains water away from the structure of your metal building which helps prevent moisture damage.

Metal roof valley flashing installation.

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. How to install a valley on a vicwest metal roof. Some roofers cut the shingles parallel to the flashing s center ridge.

Snipping off the corners of. How to do it determine cuts. Now nail this first flashing at both its far ends. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch.

Dealing with dips and making clean overlaps metal drip edge flashing is installed on the perimeter of a roof to direct water away from the fascia into the gutters and to keep wind blown rain. Drip edge installation on an existing roof. Videos roofing wrb flashing. Cut the bottom edge and fold it down over the drip edge.

When installing metal valley flashing there are a few things to keep in mind from cutting metal roofing to sealing the flashing. Make sure to cover the gap at the bottom of the raised ridge. Fold the top of the flashing over the ridge. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.

Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. Lay the flashing down in the roof valley and start at the lower end of the roof. Remember to caulk the underside of the flashing with a sealant. 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.

Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Step 6 install the flashing. Recommended procedures of basic valley flashing installation. Others start with a 3 inch wide.

Install an underlayment centered in the roof valley.