We bought the house about 1.5 years ago. About 6 months ago, I replaced the silicone in the shower, since it had gone moldy. We have been taking care since to always run the fan after showering and using a squeegee to avoid future mold.
Still, new mold appeared very quickly, within a few months. Now I pulled the silicone off again and noticed that the mold is basically pushing through from the crack behind.
What can I do to find out how bad this is behind the shower? Is there a chance that there is some mold catastrophe behind the shower tiles? I'm worried that maybe moisture got through old grout. But then again it could just be in the crack, but if so, I still need to dry it out somehow.
There is no sign of mold anywhere else in the bathroom, but I don't think that just re sealing it would be a good idea.
Any advice?
Thank you!