Shower tile floors

[chuckd]

I have a tile floor in my Shorty, and the floor leaks, and ends up leaking into the bay underneath.  I have looked at the floor, and there is missing grout on some of the tiles, none of the tiles themselves are cracked.  Is it possible to use a tile caulk and seal these cracks, or does the whole floor need replacing.

Chuckd

[rmein]

This really depends on how the shower floor was originally installed. If it was done correctly it will have a shower pan under the tile if that is the case the leak is prob. around the drain seal. If there is no shower pan then I would recommend replacing the whole floor as tile and grout are porous materials and will never be 100% water tight.

[bevans6]

The tile and the grout don't make the floor waterproof, they just make it look nice.  What's under the tile is what makes it waterproof.  I would use a membrane type product like this:  http://www.schluter.com/6_1_ditra.aspx.  They have product designed for floors, walls, if installed correctly is almost foolproof and 100% waterproof.  I think they have a shower floor bed product that puts the correct drainage slope in too.

I used a fiberglass shower system in the bus, specifically to avoid the issues with tile.

Brian

[chuckd]

Went back to the bus and re-looked.  Only one tile is cracked, but the grout is crumbling in places.  Talked to a tile person, and he is going to regrout, and reseal and we will see what happens, would like to avoid a whole new floor.  I looked underneath the floor and there is what looks like a fiberglass bottom under the tile.  Tough to see, but I think that is what is there.

Thanks for your insight.

Chuckd