I am selling a home and the inspection called for a repair or replacement of the roof section of flue pipe. This was due to a less severe but similar instance of the original picture in this thread. Most of the pipe had a light coating of rust that brushed right off. While I brushed it I was holding onto the pipe for leverage and didn't notice any weakness in its composition or stability. At a joint directly in the middle of the pipe, there was a small crack (about 3/8" X 1/64") right on the end of the female section I used rust remover and a steel brush and sealed the damaged section of the joint with JB Weld. Does someone with knowledge in this field know if this might qualify as the optioned "repair" that was listed in the inspection. Secondly, will this hold up for about 5 more years when the new owner will most likely be looking at reroofing the home? Thanks for reading this. RJ