Metal Roof Valley Flashing Installation

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.

Metal roof valley flashing installation.

Recommended procedures of basic valley flashing installation. Now nail this first flashing at both its far ends. Drip edge installation on an existing roof. Step 6 install the flashing.

Use 1 inch galvanized roofing nails. 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. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Some roofers cut the shingles parallel to the flashing s center ridge.

Apply an approximately 3 inch. Cut the bottom edge and fold it down over the drip edge. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch. Remember to caulk the underside of the flashing with a sealant.

Others start with a 3 inch wide. Make sure to cover the gap at the bottom of the raised ridge. When installing metal valley flashing there are a few things to keep in mind from cutting metal roofing to sealing the flashing. 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.

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. How to cut metal roofing to fit valleys. Videos roofing wrb flashing. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.

Install an underlayment centered in the roof valley. Snipping off the corners of. How to do it determine cuts. How to install a valley on a vicwest metal roof.

Fold the top of the flashing over the ridge.