The lead boot around the waste vent has worn away. I have no idea how it happened, but I need to fix it. I was thinking of just buying another boot, cutting the bottom off, cutting the top of the existing boot off, and sliding the new boot over the old one.

I that a good way to fix it? If so, should I affix the new bolt to the old one somehow? If not, what is a better way to fix it?

enter image description here

1 Answer 1


From the photo you posted I can see you have a different problem from what you may think. The reason the vent pipe is damaged is because a "critter" has ben gnawing it away!

The most likely suspects in the animal world (in N.A.) would be in the rodent species: squirrel, rat, chipmunks, porcupines to name just a few. You can see the small serration grooves cut by their continually growing front and lower teeth.

What is extremely astounding is that the material is lead. A soft metal! You have a very determined and serious critter wanting 'in' to your house! Normally I would suggest en-circling the pipe with a wire mesh, but I would think it could rip through it and come back for seconds!

Repair or replace the vent as easiest and best you can. To stop the chewing apply a coating of roof patch to the pipe, covering it completely. I would try to catch the pest to prevent it from future damage elsewhere and from infiltrating your home.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.