This is not common but it sometimes occurs if you have older metal pipes that have corroded.
Leaking pipe in garage ceiling.
If the built in soap dish fell off the wall this could be a source of the leak as well.
When your garage roof is poorly insulated whatever heat is in your garage will rise up through the ceiling.
You will proabably have to remove most of the garage ceiling below and open some walls to determine the extent of the mold in the wall cavity.
There are specific steps you can take to detect leaky pipes in your home.
Heating pipe in garage ceiling leaking repaired and purged air from zones.
Once the faulty pipe has been identified your next step is to replace the fittings.
Sounds like the overflow pipe from the a c condenser drip tray.
One for the plumber to come out and check it out for you and one for another contractor to repair the hole in your garage ceiling as most plumbing companies won t.
One drains normally to a better location not down on your head.
Having no heat in your garage is not a good idea as the harsh weather will not be good for your vehicles or appliances that you keep in there.
With that done you need to find where the leak is coming from.
There are supposed to be two of them.
As soon as you notice that your ceiling is leaking you can stop the flow by shutting off the main valve.
Is this just a bad seal between the pipe and drain allowing water to get between i d like to reseal and see if water continues to leak.
One of the most unpleasant and dangerous things in a home are water leaking from a pipe.
An unchecked leak in the bathroom could certainly damage a large area.
It starts with a ticking noise and if you catch it in time you can save a lot of headache damage money and time as most of the time by doing a quick repair you can prevent a lot of damage to your ceiling dry walls sheet rock floors electrical and your home goods.
I have some water damage on the ceiling in my garage directly below the master bathroom shower i cut away the ceiling and insulation and took a pic after running the shower.
Where ceiling leaking appears to be occurring in areas where there are no plumbing fixtures directly above there is a possibility that a water supply pipe or drain pipe inside a ceiling cavity has developed a leak.