I'm in the process of remodeling my guest bathroom after a complete gut job. I just want a couple of different views and advice regarding areas where I've heard many different things about.
1. Should I caulk or grout the inside corners of the tile in the shower? If caulking, any special caulk?
2. Can I tile directly on a self level eking compound (LevelQuik RS) that has a floor heating system underneath, or do I need a membrane of some sort in between?
You should caulk all changes of plane and where dissimilar materials meet. You can use a sanded caulk from where you buy your grout. When you choose a grout color, make sure they have a caulk in the same color.
You can also use a silicone caulk, which you have to finish with mineral spirits or paint thinner. I have never used this type. It is supposed to be better.
The first type does shrink some. And it dries fast. I use a sponge to finish it with as soon as it is applied.
If you grout with urethane grout, which one might recommend, I think you can get by by using it in the corners. It is much softer than a cement based grout.
You can tile directly on the self-leveling compound.
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