Newspaper article Evansville Courier & Press (2007-Current)

Degraded Rubber Boot on Vent Pipe Likely Caused Stain

Newspaper article Evansville Courier & Press (2007-Current)

Degraded Rubber Boot on Vent Pipe Likely Caused Stain

Article excerpt

Q: I have a stain on my bathroom ceiling that is in the middle of the first floor of my house. The room above does not have any plumbing and nothing has been spilled up there. What can cause a problem like this, and how can it be fixed?

A: During a home inspection, I always look at the ceiling above a bathroom because there is a large pipe inside one of the bathroom's walls.

The pipe extends all the way through the house and attic and finally above the roof. The pipe is a plumbing vent used to vent sewer gases and to allow air to enter the plumbing sewer pipes so they can drain efficiently.

A rubber boot is slipped snugly over the pipe where the pipe penetrates the roofing, creating a water seal. Over time, the rubber will degrade leaving an opening where rain or snow melt can run down the pipe to the ceiling below. …

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