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laying tile on cement slab

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laying tile on cement slab grodenhiATgmailDOTcom 07-13-2006
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Posted by PipeDown on July 13, 2006, 5:08 pm

> Just mee wrote:
>> Rip up the vinyl floor, put tile directly on slab with thinset.
>>
>>
>>> I am preparing to do ceramic tile in a small 10x11 foot sunroom or our
>>> house. This sunroom is built on slab (raises about 3 to 4 inches above
>>> grade. Currently there is just vinyl floor and shows no sign of damage
>>> (just don't like the color/style). Can I lay the tile directly on the
>>> slab, or should I use some sort of vapor barrier? If I need to use a
>>> vapor barrier how is that done? I'd like to avoid having to nail into
>>> the slab if possible. Thanks in advance!!
>>>
>>
>>
> The house we're buying is on a slab. Original (early 1950's) tile under
> current carpet/tile is asbestos according to inspector. We'd like to
> replace the kitchen and bath tile with ceramic/faux stone and some manner
> of wood in the living room. Should we leave the original asbestos layer
> and go over it? What other things do I need to take into consideration
> regarding what we choose to put over it? We were hoping some of this could
> be work we do ourselves - is there anything about sealing with the slab or
> going over the old tile that may be too difficult for novices?
>
> -Karen-

For wood floors put them right on top of the old asbestos tile. The new
floors are usually floating and can be installed directly over any smooth
surface. Even it it werent asbestos, this way is much less work.

For ceramic or stone tile, I would peel up the tile and get all the way down
to bare slab or I might overlay with thinset and cement board (you will need
a heavy duty nail gun to nail it to the slab) then tile over the new
substrate. The choice may ultimately be dictated by the thichness of the
materials. The buildup for the wood and tile floors should be similar,
might be able to get a near-level transition without ripping up any of the
old tile if you want.

Choices choices choices. If it aint picking the material, its choosing the
optimal installation method from several that could work.



PexSupply Full Banner
Posted by on July 13, 2006, 6:03 pm
wrote:

>
>> Just mee wrote:
>>> Rip up the vinyl floor, put tile directly on slab with thinset.
>>>
>>>
>>>> I am preparing to do ceramic tile in a small 10x11 foot sunroom or our
>>>> house. This sunroom is built on slab (raises about 3 to 4 inches above
>>>> grade. Currently there is just vinyl floor and shows no sign of damage
>>>> (just don't like the color/style). Can I lay the tile directly on the
>>>> slab, or should I use some sort of vapor barrier? If I need to use a
>>>> vapor barrier how is that done? I'd like to avoid having to nail into
>>>> the slab if possible. Thanks in advance!!
>>>>
>>>
>>>
>> The house we're buying is on a slab. Original (early 1950's) tile under
>> current carpet/tile is asbestos according to inspector. We'd like to
>> replace the kitchen and bath tile with ceramic/faux stone and some manner
>> of wood in the living room. Should we leave the original asbestos layer
>> and go over it? What other things do I need to take into consideration
>> regarding what we choose to put over it? We were hoping some of this could
>> be work we do ourselves - is there anything about sealing with the slab or
>> going over the old tile that may be too difficult for novices?
>>
>> -Karen-
>
>For wood floors put them right on top of the old asbestos tile. The new
>floors are usually floating and can be installed directly over any smooth
>surface. Even it it werent asbestos, this way is much less work.
>
>For ceramic or stone tile, I would peel up the tile and get all the way down
>to bare slab or I might overlay with thinset and cement board (you will need
>a heavy duty nail gun to nail it to the slab) then tile over the new
>substrate. The choice may ultimately be dictated by the thichness of the
>materials. The buildup for the wood and tile floors should be similar,
>might be able to get a near-level transition without ripping up any of the
>old tile if you want.
>
>Choices choices choices. If it aint picking the material, its choosing the
>optimal installation method from several that could work.
>
They don't usually put tile directly on concrete here in new
construction, they put down a membrane, then the tile. If your current
tile is sound I would use it as a substrate and lay the tile over it.
That will sequester asbestos if it is there

Posted by grodenhiATgmailDOTcom on July 14, 2006, 8:57 am
I checked over all my vinyl tile (12 inch square vinyl tiles) and it
still appears to be stuck on pretty good. There are a few tiles here
and there that appear to be a bit unstuck in the middle (the edges are
still down real tight) and each tile as a whole appears to be going no
where. Does this situation seem okay to tile over? If not, is it
possible to only pull up the ones slightly unstuck but leave the others
alone?


gfretwell@aol.com wrote:
> wrote:
>
> >
> >> Just mee wrote:
> >>> Rip up the vinyl floor, put tile directly on slab with thinset.
> >>>
> >>>
> >>>> I am preparing to do ceramic tile in a small 10x11 foot sunroom or our
> >>>> house. This sunroom is built on slab (raises about 3 to 4 inches above
> >>>> grade. Currently there is just vinyl floor and shows no sign of damage
> >>>> (just don't like the color/style). Can I lay the tile directly on the
> >>>> slab, or should I use some sort of vapor barrier? If I need to use a
> >>>> vapor barrier how is that done? I'd like to avoid having to nail into
> >>>> the slab if possible. Thanks in advance!!
> >>>>
> >>>
> >>>
> >> The house we're buying is on a slab. Original (early 1950's) tile under
> >> current carpet/tile is asbestos according to inspector. We'd like to
> >> replace the kitchen and bath tile with ceramic/faux stone and some manner
> >> of wood in the living room. Should we leave the original asbestos layer
> >> and go over it? What other things do I need to take into consideration
> >> regarding what we choose to put over it? We were hoping some of this could
> >> be work we do ourselves - is there anything about sealing with the slab or
> >> going over the old tile that may be too difficult for novices?
> >>
> >> -Karen-
> >
> >For wood floors put them right on top of the old asbestos tile. The new
> >floors are usually floating and can be installed directly over any smooth
> >surface. Even it it werent asbestos, this way is much less work.
> >
> >For ceramic or stone tile, I would peel up the tile and get all the way down
> >to bare slab or I might overlay with thinset and cement board (you will need
> >a heavy duty nail gun to nail it to the slab) then tile over the new
> >substrate. The choice may ultimately be dictated by the thichness of the
> >materials. The buildup for the wood and tile floors should be similar,
> >might be able to get a near-level transition without ripping up any of the
> >old tile if you want.
> >
> >Choices choices choices. If it aint picking the material, its choosing the
> >optimal installation method from several that could work.
> >
> They don't usually put tile directly on concrete here in new
> construction, they put down a membrane, then the tile. If your current
> tile is sound I would use it as a substrate and lay the tile over it.
> That will sequester asbestos if it is there


Posted by JimL on July 13, 2006, 12:36 pm
On 13 Jul 2006 06:16:09 -0700, "grodenhiATgmailDOTcom"

>I am preparing to do ceramic tile in a small 10x11 foot sunroom or our
>house. This sunroom is built on slab (raises about 3 to 4 inches above
>grade. Currently there is just vinyl floor and shows no sign of damage
>(just don't like the color/style). Can I lay the tile directly on the
>slab, or should I use some sort of vapor barrier? If I need to use a
>vapor barrier how is that done? I'd like to avoid having to nail into
>the slab if possible. Thanks in advance!!

I'd always check the whole floor and see if you have any vinyl that
is not connected to the slab and if so rip it all out. Otherwise, I'd
leave the vinyl and tile right over it.

The best way to see if the adhesion is still good is to slap the
vinyl floor with your hand. You will hear a distinct difference if
you have adhesive problems.




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