vapor barrier between a slab and tile with Portland Cement

[Guest guest]

Hello,

I have a question about preventing wicking of moisture under a slab. I have

removed the carpets in my home and want to put either a green guard laminate or

ceramic tile. Ceramic tile would be more inert but I think I need a vapor 10 mil

barrier over the slab. Is it possible to lay Portland cement on a vapor barrier

to prevent wicking from the slab? Will mold be an issue? The slab my house is on

is a floating slab (probably sand, then kraft paper and tar over fiberglass

insulation, and finally a cement slab on top). This house was built in 1960.

There appears to be gutters drained to a storm sewer. The house does has a

strange odor and mold in the kitchen and bathroom that may have had leaks in the

past.

Also, is it possible to place the tile close without grout or will this cause

problems in the future?

Any suggestions to improve IEQ would be greatly appreciated. Thanks,

Don Paladin WSMCSN owner

http://wsmcsn.s5.com