I had our master bath done just over a month. I just noticed yesterday that there is a fine crack in the middle of the caulk line on the back wall where the shower glass guys propped up the shower glass door when they were installing it. I think the contractor didn't put enough caulk there to allow the movement in the joint when the glass door was propped up against that wall.

So I've taken the caulk line out that had the crack. I probably know the answer to my question, but just in case... do I have to take out the entire caulk line around the shower pan or can I just do that one caulk line that was cracked?

If I need to do the entire caulk line around the bottom of the shower, should I go up a bit in the corners?

Thank you
Mel

 

if everything is clean where the new meets the old caulk you should not need to do the entire pan

 

Well, I went ahead and scraped out around the pan. It was acrylic caulk so I wanted to replace it all with silicone. I'm going to leave the vertical joints alone.

 

The siliconized acrylic caulk with microban is best for showers. Cant tell you how many showers I have scraped out all that old nasty silicon that mold got behind.

 

The main thing is to make sure it's a caulk rated for bath rms as it will have extra mildewcide. One of the main reasons for moldy caulk is it being applied over gaps that aren't good and dry. You want to make sure there is no moisture behind the tile, not just on the surface.