Flashing is required around any metal pipe that sticks through your roof. It acts like a collar that will prevent leaks from forming between the shingles of the pipe itself. Unfortunately, the flashing is prone to leaking over time, and it will need replacement when it does. Replacing the flashing is a job that you can do on your own in 6 simple steps.

1. Removing Surrounding Shingles

Use a pry bar to loosen all of the shingles that surround the pipe. It will be necessary to break any sealant strips on the shingles, and nails that secure the shingles to your roof. Always be careful not to damage the shingles when removing them, as you will be able to reuse them later.

2. Removing Old Flashing

The flashing will have nails in it as well that need to be removed. Be careful when removing these nails, as you do not want to damage the seal around your pipe. If it already looks damaged, you can just rip it off and replace it later. If the seal still is in one piece, carefully remove it over the pipe as you can reuse it.

Once the nails are gone, you can lift the metal flashing over the pipe.

3. Installing New Flashing

Slip your new piece of flashing on the extruding pipe. It will need adjustments made to it so that it is as snug as possible to the pipe. You can now place the seal back over the pipe so that it rests on top of the flashing. It will help keep the flashing's flange flush on your roof's surface.

4. Applying Mastic

Mastic is used to help for the seal around the new flashing. You only need a small amount underneath your flashing to help seal it to the roof. Once you have the mastic in place, you can nail the new flashing into the roof. You should not use any existing holes from the nails that previously held the flashing down, as it will create a loose seal.

5. Replacing Shingles

You can now place the shingles back on the roof in the same formation as they were before. It may require cutting some down with a knife if your new flashing is larger than the previous one. Once again, avoid using existing nail holes when nailing the shingles back into the roof.

Mastic can be applied underneath the front edge of your shingles to help form a seal and prevent them from lifting.

If these steps seem too complicated for you, contact a local roofing company, like Conrad Roofing Of Illinois, that can replace your flashing for you. 

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