How To Install Flashing On Roof In Avalley

Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. 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. 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.

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Cut the top layer of shingles along the chalkline.

How to install flashing on roof in avalley.

Place the flashing on the upper portion or the upper flange of the batten. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch. Step 6 install the flashing. Recommended procedures of basic valley flashing installation.

Make sure to cover the gap at the bottom of the raised ridge. Fold the top of the flashing over the ridge. Now nail this first flashing at both its far ends. Apply an approximately 3 inch.

Most flashing is 8 inches wide. Cut the bottom edge and fold it down over the drip edge. Slip a piece of sheet metal flashing under the top layer of shingles to protect the bottom layer in the valley while you cut the shingles with a hook blade. Remember to caulk the underside of the flashing with a sealant.

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. Step 9 cut corners and apply cement. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Install an underlayment centered in the roof valley.

Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint. Install the valley battens on the sides of the roof that you want to place the valley flashing.

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