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concrete floor sealer? to prevent damp before laying vinyl tiles

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concrete floor sealer? to prevent damp before laying vinyl tiles jim 12-06-2006
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Posted by jim on December 6, 2006, 8:42 am


Hi, i will soon be laying karndean vinyl floor planks in my house, it
is a 1946 semi and i am concerned whether it has a dpm under the
concrete floor, it has old black tiles down at the moment which i found
under the carpet not sure what they are made of but they are brittle
and blown on the corners (white dust around the edges), they seem quite
well fixed to the concret floor, it looks there is bitumen on some of
the tiles, does anyone know the likelihood of ther e being a dpm under
the concrete for this age of house. I dont have any damp problems other
than the white dust around the edges of these old tiles, which i think
is due to damp of some sort, and i dont want to lay new floor without
treating the concret first. would bitumen do the job if i spread sand
over the top before i put self level compound down?

Im planning to lift the tiles ,self level with latex, and lay the floor
with pressure sensitive adhesive. do i need to prime the concrete
before latex if so what with? and then do i need to prime the latex
before the adhesive?
Also can i lay the latex in two parts ( i have all downstairs to do)or
does it need to go down all at once. Any advice would be much
appreciated. Thanks


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Posted by hallerb@aol.com on December 6, 2006, 8:49 am


ASBESTOS ALERT THE TILE AND ADHESIVE BOTH PROBABLY CONTAIN ASBESTOS:(

probably no waterproof membrane either..........


Posted by HeyBub on December 6, 2006, 10:32 am


hallerb@aol.com wrote:
> ASBESTOS ALERT THE TILE AND ADHESIVE BOTH PROBABLY CONTAIN ASBESTOS:(
>
> probably no waterproof membrane either..........

So what?



Posted by HeyBub on December 6, 2006, 10:32 am


jim wrote:
> Hi, i will soon be laying karndean vinyl floor planks in my house, it
> is a 1946 semi and i am concerned whether it has a dpm under the
> concrete floor, it has old black tiles down at the moment which i
> found under the carpet not sure what they are made of but they are
> brittle and blown on the corners (white dust around the edges), they
> seem quite well fixed to the concret floor, it looks there is bitumen
> on some of the tiles, does anyone know the likelihood of ther e being
> a dpm under the concrete for this age of house. I dont have any damp
> problems other than the white dust around the edges of these old
> tiles, which i think is due to damp of some sort, and i dont want to
> lay new floor without treating the concret first. would bitumen do
> the job if i spread sand over the top before i put self level
> compound down?
>
> Im planning to lift the tiles ,self level with latex, and lay the
> floor with pressure sensitive adhesive. do i need to prime the
> concrete before latex if so what with? and then do i need to prime
> the latex before the adhesive?
> Also can i lay the latex in two parts ( i have all downstairs to do)or
> does it need to go down all at once. Any advice would be much
> appreciated. Thanks

Why go to the trouble of removing the tiles?

Can't you just level what you've got an cover the result with the new
flooring?



Posted by jim on December 6, 2006, 2:34 pm



Hmmm, yes i could have levelled on top of old tiles, but i have taken
half of them up now, erm asbestos! wish id known before hand, they are
coming up easy with a rotary stop chiseller, but if they contain
asbestos then i have most certainly inhaled some :((.
Local builders yard told me to paint bitumen on concrete then levelling
compound then tiles.
Does this sound ok?


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