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I am doing some remodeling work. The house had an addition put on some
time again, guessing about 25 yrs. I removed a wall between the two
and wish to install parquet floor in, the problem is that the concrete
does not transition smoothly from one room to the next. There is about
an inch difference in elevation. Would it be easier and cheaper to
grind down the high spot, or buy some self leveling compound and just
flash the floor with that. It seems that the self leveling compund
would be rather expensive, do to the coverage area that needs to be
fixed. Let me know your thoughts.

???? Is there a hump at the transition point, or is the floor simply higher
on one side of where the wall used to be? (and I hope you didn't remove a
load-bearing wall without adding something back to hold up that part of the
roof structure...)

If one of the floors is simply at a different level, but the floors are
otherwise level, I'd infill with layers of backer board or even plywood over
felt, and use fiber tape and leveling compound at the transition point so a
crack doesn't telegraph through. Is the parquet you were planning on rated
for use on concrete? You may be looking at putting down underlayment anyway.

aem sends...