How To Install Vent Pipe Flashing On Existing Metal Roof

Below are some links to the tools i used on this project.

How to install vent pipe flashing on existing metal roof.

Hammer the nails into the top and sides of the flashing. Roofing nails per side photo 2. This flashing is super thin and very flexible to curve around the humps in the metal roofing. I prefer to use a dsa flashing also known as a dead soft aluminum flashing.

Slide the new flashing over the vent pipe and under the shingles above the pipe. The neck of the flashing should fit snugly around the pipe. Put one nail in the bottom edge with a dab of caulk under it to seal the. Rubber vent flashing automatically adjusts to any pitch lift the vent enough to spread caulk under the sides but not the bottom edge then nail with three 1 1 4 in.

1 remove nails holding down shingles above the pip. In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation. Typically flashing is installed using roofing nails and roofing cement. The flashing should be installed under the top and side shingles but it should be laid above the shingles that are below the vent pipe.

After installation you ll then re lay the shingles you removed to provide a comprehensive water tight solution. You can call us with any questions you may have. To make the installation easier you can turn the flashing as you lower it in place. Following is the proceedure for installing the dsa flashing.

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