(No) Progress

The bathroom has been stripped.

Stripped

Stripped

And some of the soft spots patched.

Patched

Patched

Now I need to figure out how to bring home all the backerboard and drywall.  I think everything else I need will fit into the car.

Not like this!

Not like this!

And then there is the lip problem. No, not the areas that the razor just doesn’t reach.

I’ve read many forums on this and not a few instruction PDFs from tub makers and cement board makers.

Some say to leave 1/4 inch between the top of the lip and the bottom of the CBU.

Some say to use furring strips on the studs so that the CBU can be brought to within 1/8 inch of the top of the tub, thereby covering the lip.  The furring strips will make the protruding lip even with the studs so the CBU won’t bow when it goes from tub lip to stud.

All say to use a vapor barrier, but some say 15# felt, some say plastic (anywhere from 3mm to 6mm). Some say to bring that barrier over the lip, and trim it before caulking. And use caulk to help stick it to the tub lip.

Why is there no consensus?

And then there is RedGard and Ditra. What the heck are they?

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