Install Valley Flashing Existing Roof

Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. One common method is to lay the edge metal under the eaves membrane and over the rake.

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Roof Valley Flashing Specifications And Details

How To Install Flashing On An Existing Roof

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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.

Install valley flashing existing roof.

Finally reattach all shingles removed in the process. Remember to caulk the underside of the flashing with a sealant. Install the valley battens on the sides of the roof that you want to place the valley flashing. Videos you watch may be added to the tv s watch history and influence tv recommendations.

Recommended procedures of basic valley flashing installation. To avoid this cancel and sign in to youtube on your computer. Install flashing on existing roof to extend the lifespan of your roof. In this video i show you how i do the valleys on a shingle roof.

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. No one of this affirmat. Fold the top of the flashing over the ridge. Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.

Cut the bottom edge and fold it down over the drip edge. Make sure to cover the gap at the bottom of the raised ridge. Now nail this first flashing at both its far ends. Install an underlayment centered in the roof valley.

Details concrete masonry roofing wrb flashing. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch. Others start with a 3 inch wide. Two ways to flash roof edges.

Many roofers cut the shingles across because they say it s safer. The woven valley shingle installation method does not call for roofing cement relying instead on the weave pattern to protect from water infiltration. Some roofers cut the shingles parallel to the flashing s center ridge. Apply an approximately 3 inch.

Place the flashing on the upper portion or the upper flange of the batten. So if you are installing a woven valley you must push the shingles snugly into the valley while not nailing within six inches of the valley center. Snipping off the corners of. 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 6 install the flashing. How to do it determine cuts.