Archive for May, 2014


Hi Chris:

I was so happy to see your website and was wondering if u can give me any advice.  I have a fixed shower panel where it is secured at the bottom with U Track type of metal. My contractor guys forgot to seal it in the beginning so water got in and leaked outside.  After I informed them of the problem they came back and put clear silicon seal around the bottom.  Everything was good for about 6 months.  And now I’m noticing black stuff (I’m assuming it’s some kind of mold) inside the silicon seal and INSIDE the track!  Is there any way I can clean it out?  and after cleaning it out (hopefully) how do i seal again?  Is silicon caulking enough? or is there any kind of seal strip i should add?

thank you very much for your help!



Hi Charlotte,

Thanks for reading my blog. It looks like the caulking was applied after the water was already in the channel. Once the mold began to grow, it was trapped inside. Since the glass is clear, the mold is highly visible… In order to fix the problem, the glass is going to need to be removed from the channel. I would clean it thoroughly, and use bleach to make sure that the mold is completely eliminated. Only then should the glass be replaced, and the silicone seal reapplied. Make sure that the glass and channel are nice and dry before you do so. There is also a type of silicone that is “mildew resistant.” This is the type you are going to want to use. It has a fungicide in the formula, and will help to prevent the mold growth. Apply the silicone where the metal and glass meet to prevent water from entering the channel.

Best wishes,