Dripping Sound Under Floor

Even worse the plywood subfloor delaminates and rots requiring a huge expensive tearout and replacement project.

Dripping sound under floor.

Interesting i noticed every time someone is talking shower on the second floor guest bath right below it on the first floor i could hear dripping or ticking sound. Before long the vinyl flooring or tiles begin to loosen. I just moved into a 4 yr old house. I crawled under the house where i can eyeball the toilet drain pipe.

Be sure to especially check the kitchen as there are many water sources and water pipes in that room. Fortunately not every water sound signals a problem sometimes the water is safely inside pipes. From there i can hear the dripping but can see no water leaking anywhere. After shutting off the water on the second floor the sound finally tapers off after 5 10 min.

The conclusion is assumed to be a leak under the floor. The sound is from a very area in the ceiling around 1ft radius circle. Listen carefully for this noise because if you detect it it can lead you right to the source of the leak. First check your basement or crawl space below the spot where you hear the water sound.

The drip drip drip goes on for maybe an hour. Although it may sound minor this leak causes major damage when water seeps into the subfloor where flooring meets the tub or shower. Leaking pipes often project a strange hollow hissing sound.