Install A Roof Vent Flashing

How to install step flashing with a wall corner step three.

Install a roof vent flashing.

Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof. The metal i m using is called crinkle black i purchased all my materials at h. Slide the new flashing over the vent pipe and under the shingles above the pipe. Be sure to like and subscribe in order to help me bring you more helpful videos filled with tips and tricks i ve learned over the years.

Now that the old flashing is gone you can slide the new flashing over the pipe vent and maneuver it under the shingles above the pipe. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Then set the piece down. 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.

These need to be fabricated or ordered to match a specific roof pitch and pipe diameter. Lifting the shingles around the vent if you ve already laid them or they re already part of an existing roof slide the upper portion of your vent flashing beneath them. Cut your shingles precisely to leave at least half an inch around the base. Begin by removing the shingles at the affected area and removing old flashing if present.

The traditional pipe flashing is a soldered lead riser pipe that encloses the vent pipe and folds in the pipe at the top. Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1. Using a sawzall cut any roofing nails in the area of the lower mounting plate flush with the sheathing. Ensure it sits flat and extends at least 8 inches above the shingles.

To install vent pipe flashing you will be placing the upper portion below the shingles while allowing the bottom portion that extends below the pipe to lay exposed on top of the shingles. After selecting an area to install from inside the building square the template between the roof rafters and outline with a marker. Plenty more videos t. If there is a split in the shingle along the edge of the flashing be sure to caulk the edge of the flashing.

Nail it in place with two nails one. Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place. Use one roofing nail in each corner of the flashing to secure it to the roof. In this video i cover installing a roof boot for a vent pipe in a metal roof.

Hammer one nail to the. Next use a reciprocating saw with a rough in blade to cut the out the marked template. Leave the bottom of flashing exposed so only the sides and top are covered by shingles.