Banty wrote:
In article , G Henslee says...

Banty wrote:

In article , G Henslee says...



::snip::


It's completely glued down (or at least a lot more than perimeter), good
condition, farily new (installed in 1996).

Still remove it?

Banty

Banty


Based upon *your* desc. I wouldn't remove it. Remember, that vinyl
sheet performs two services for you. Anti-fracture as well as a
moisture inhibitor for hydrostatic pressure. You should use a latex
modified thinset.


I'm not sure what you mean..

Anti-fracture meaning good for the tile which will go over, or an advantage I'll
lose with tile (I know that..)? And where does being a "moisture inhibitor for
hydrostatic pressure" come in? If it's relevant, this kitchen is over a heated
bottom floor/basememt in a hillside ranch.

Thanks,
Banty



Anti-fracture. Slabs crack. A membrane can inhibit the crack
transferring through the tile.

Hydrostatic pressure and moisture?

http://www.glaciernw.com/assets/resources/CIP28p.pdf


That's what I wondered if that's what you meant.

Like I said (perhaps not clearly enough), the tile is not on a concrete slab -
it's on the floor above the basement.

Banty


Then you have a whole different set of conditions and issues to deal with.