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l.bro
plumbing vent

Apparently my plumbing vent may have come detached and is causing the leak in the roof. I have put a cap on the plumbing vent and there is no more apparent leak. Which plumbing vent cap is best and should I still have this vent repaired on a flat roof of course and is there a way the repair is done without breaking the ceiling.

Fencepost
Re: plumbing vent

It's probably the flashing -- known as a "roof jack" -- around the vent pipe.

Unfortunately, the materials and methods for working on flat roofs aren't very friendly to the do-it-yourselfer. Your best bet is probably having a roofer come out and fix it.

P.S. -- Plumbers aren't qualified to fix roof leaks. I should know: I was a plumber once.

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