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Posted by aemeijers on August 23, 2008, 8:15 pm
SteveBell wrote:
> My client wants ceramic or porcelain tile on her back porch. The
> previous owner had glue-down green carpet/fake grass there. My question
> is: Can I put thinset down on top of the remaining skim layer of carpet
> glue?
>
> An Internet search gives me advice all over the map: remove it with
> solvents/don't use solvents because they soak into the concrete and
> keep thinset from sticking; remove it with abrasives/don't because it
> just melts and wastes time; remove and replace an obscenely thick layer
> (1/4 - 1/2 inch) of concrete.
>
> * The surface is smooth and even, and it is sloped properly.
> * I power-washed it awhile back, and the glue washed off just slightly.
> * I plan on scraping with a 4" razor in any case.
>
> The fact that the glue dissolved slightly makes me hopeful that
> water-based bedding material will "bond" with it. On the other hand, it
> makes me worry, also, that it won't.
>
> I'll take any advice I can get.
>
Rueful Chuckle. Idiot previous owner put that crap down in the furnace
room here, along with cheesy 1960s wood paneling and a drop ceiling
screwed to the ducts. It was apparently his gun room, including the
reloading equipment. (Here's yer sign, etc.)
Anyway, I had to do a lot of demo in there to make a road for the crew
replacing the furnace, and I still haven't got all that black carpet
residue off the the floor. I scrape and sweep and vacum, but there
always seems to be more. A couple hundred bucks of industrial floor
matting (the interlocking squares) is starting to look real tempting.
--
aem sends...
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