How To Install Roof Vent Flashing Ideas. Carefully remove all the shingles from the flashing. Place the vent into position.position a section of metal ridge cap over the peak of the metal roof, with the end of the ridge cap flush with one end of the roof peak.put the foam closure in the right place and use an adhesive to stick it on the metal roof.
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. In their defense, they did install a vent filter to pass code. Here is how you do it: