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basement floor - paint to seal then tile later?

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basement floor - paint to seal then tile later? still me 07-28-2007
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Posted by still me on July 28, 2007, 8:23 am
Couple of questions:
I am going to (eventually) put tile and likely radiant heat in my
basement. In the meantime, I am thinking of painting the floor to seal
it (drylock?). I get lots of water thru my dehumidifiers down there
and I suspect much of it comes through the floors. I'd like to cut
down on that and get a usable surface on it until I can tile some time
in the future. Basement is 20 years old.
Questions:
- is painting the floor a bad idea if I plan to tile? Does the thinset
need to actually adhere to the floor later or can it just sit on top?
- is Drylock still the best thing or are there better paints or
sealers now? Is the latex as good as the old oil version ?
Posted by DanG on July 28, 2007, 10:09 am
Paint is absolutely the worst thing you could possibly do.
No VCT tile will ever stick to a high moisture floor. The one
exception to that would be use Fritz adhesive - very expensive and
may not be available to consumers
Water problems need to be solved on the outside. Underfloor water
requires subloor drainage and sump pump work.
The radiant heat I know about is buried in or under the concrete
floor, you must be talking about something else.
There is one product you may be interested in finding. It grows
crystals in the voids in concrete in the presence of water. It is
the one product I would spend any time on in an attempt to seal
leaking concrete from the inside.
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--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net
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Posted by still me on July 29, 2007, 12:22 am
>Paint is absolutely the worst thing you could possibly do.
>No VCT tile will ever stick to a high moisture floor. The one
>exception to that would be use Fritz adhesive - very expensive and
>may not be available to consumers
OK... but what's VCT ? I'm looking at thinset and ceramic.
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Sorry, ain't gonna happen. It's the middle of Summer, dirt under the
floor is slightly damp, no visible water unless you dig a few feet
below that. I still pull 10 gals a day out thru the dehumidifiers. We
use sumps here but they only come into play when the water table rises
in spring.
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How about installing on top of the floor and putting a layer of
concrete on top of which the tile floor sits? Perhaps not ideal, but I
really don't want to jackhammer up the floor at this point.
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Thanks, I'll check it out.
Posted by Just Joshin on July 31, 2007, 12:37 am
wrote:
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Paint sounds like it will prevent a good mortar to cement contact. I
would skip it.
tom @ www.Consolidated-Loans.info
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