Shower surround wall panel - gap near shower pan

[2 Allies]

Creek,
I think the primary reason IMHO is that the walls and pan are going to move differently while going through the earthquake of travel days. All the movement would leave a sealant bead in tough shape over time. With the lip built on the pan, no water will migrate upward and over. Vapor may migrate but by not sealing it has a place to escape. So far so good on ours and the fix in future models is one piece units.
Regards,

 

[Creek Jenkins]

The vapor is indeed migrating upward as I am getting a brown goo at the foot of the wall panel as I think the back of the panel is not waterproof. As soon as I can get it dried out I will seal it and see what happens I’ve got nothing to lose.

 

[Midnight Rider]

I think the bottom line of what we are saying is, why would there be moisture on the other side of the wall in the first place?

Condensation?

 

[Creek Jenkins]

Not unless you take really cold showers. Water doesn’t condense on warm surfaces.