I purchased a plastic flashing assembly from the local home improvement store.
Replacing roof vent pipe boot.
Works for any size pipe.
Now it is time to work on the roof.
However replacing the entire flashing can be quite involved and may require the application of new shingles.
You can also replace the entire flashing around the pipe.
Obtain another rubber seal.
You can cover the lip of the damaged boot in mastic or silicone caulk.
Use common sense safety precautions and make sure you can.
Designed for all standard roof pitches 3 12 to 12 12.
Make sure you need a new boot may just need a bit of bitumastic caulk if it is leaking a bit at the duct contact as they commonly do as the rubber gets older.
There are a number of different methods for repairing a roof boot.
Easy installation and no tools required.
Video turorial on how to change out a plumbing vent boot.
Slides over the existing roof vent boot preventing future leaks.