How To Install Vent Pipe Flashing On Existing Metal Roof

This is how i installed my dwv drain waste vent pipe through my metal roof.

How to install vent pipe flashing on existing metal roof.

Below are some links to the tools i used on this project. Roofing nails per side photo 2. 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. Slide the new flashing over the vent pipe and under the shingles above the pipe.

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. How to install a flashing on a metal roof. 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.

Typically flashing is installed using roofing nails and roofing cement. You can call us with any questions you may have. After installation you ll then re lay the shingles you removed to provide a comprehensive water tight solution. The neck of the flashing should fit snugly around the pipe.

1 remove nails holding down shingles above the pip. 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. Be sure to subscribe. 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.

I prefer to use a dsa flashing also known as a dead soft aluminum flashing.