Installing Flashing On Roof Valley

Lay the flashing down in the roof valley and start at the lower end of the roof.

Installing flashing on roof valley.

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. Fold the top of the flashing over the ridge. Attach the flashing panel in place at the bottom. When you install roof flashing you will need to use a sealant.

Use 1 inch galvanized roofing nails. Once the shingles have been installed lay the base flashing around the base of the chimney approximately 4 past each end. It is necessary to install flashing in your roof valley as valleys are prone to developing leakages. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.

Now notch the first step flashing so that it will bend to go around the chimney front and side as well as at the base. Snipping off the corners of. Step flashing for chimneys. Some roofers cut the shingles parallel to the flashing s center ridge.

Apply an approximately 3 inch. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Installing your roof flashing is going to be slightly different depending on the specific type that you re installing. A valley is the part of your roof where two descending parts of the roof meet each other.

A flashing on the other hand is a waterproofing material used to prevent leaks on roofs. 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. Cut the bottom edge and fold it down over the drip edge. How to do it determine cuts.

Recommended procedures of basic valley flashing installation. 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. Install an underlayment centered in the roof valley.

Others start with a 3 inch wide. Remember to caulk the underside of the flashing with a sealant. Make sure to cover the gap at the bottom of the raised ridge.