Installing Flashing For A Roof Vent

Step 1 climb to the roof.

Installing flashing for a roof vent.

Pry back the shingles that are above and on both sides of the vent pipe using a pry bar. How to install roof flashing for a vent. Step 2 loosen shingles. How to install vent pipe flashing on an existing roof step 1.

Slide the new flashing over the vent pipe and under the shingles above the pipe. Step 3 install new flashing. It s soldered to a roof flange that layers into the shingles. Run a bead of silicone on the two tiles next to the flashing.

Center the pipe in the flashing and push the flexible front corners up or down so that the flashing pipe is parallel to the vent pipe. These need to be fabricated or ordered to match a specific roof pitch and pipe diameter. Use the mallet to gently tap down the sides of the flashing so that it follows the profile of the tiles. Place the new flashing over the vent and into the correct position.

Seal the top of the counter flashing and any gaps with plastic roofing cement. Traditional flashings still work. It is important that. Slide the vent under the shingles so they cover the top half of the vent flange.

Apply a bead of asphalt roof cement on the bottom of the vent. The best method for sealing valleys is to install a strip of roofing felt or a waterproof membrane in the valley over the roof deck before installing roofing felt. Install the flashing by sliding it into place so that it is sitting under the tiles above it. Install galvanized metal flashing.

The traditional pipe flashing is a soldered lead riser pipe that encloses the vent pipe and folds in the pipe at the top. The flashing should be installed under the. The lower half of the flange sits on top of the shingles. You ll need to get on the roof to install a new flashing.

Further your step flashing pieces need to be 10 inches 254 mm long and at least 2 inches 50 mm wider than the exposure of the shingle you re using. Nail the lower corners with roofing nails and tar the heads. Step 4 complete finish work. Most will need an extension ladder.