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Old 04-16-2011, 03:24 PM   #1
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Tips for fixing an out of level concreat floor


I am remodeling a bathroom (approx 8'X8') that is on a concrete slab that is way out of level and has highs and lows in it. It is in the range of 3/4" out of level.

What is the best way to fix this? I assume I need to float a new concrete floor on top of it? Is there a better product that concrete to work with for a job like this?

Should I flash the bottom plate and framing to keep the concrete and future water away from it.


Thanks for any help.

Dave

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Old 04-16-2011, 04:32 PM   #2
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Tips for fixing an out of level concreat floor


Self leveling compound ---some require a primer on the concrete----Most can be mixed with sand or P-gravel (fills big voids faster and cheaper)

They are a bit tricky to use,as they set up very quickly.

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Old 04-17-2011, 07:54 AM   #3
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Tips for fixing an out of level concreat floor


Hi Dave.

1) Find the highest point of the floor.
2) place a laser auto leveler on that point to give you a laser level line on the walls
3) etch the line on the wall with a pencil and a straight edge
4) use a sharp chisel and a 4lb hammer to chip holes into the low laying concrete, this will allow the new concrete a stronger bond
5) mix a skim slurry of 1 part cement and two parts of fine plaster sand
6) ensure that the area to be repaired is scrubbed clean of any oil
7) apply the slurry with a plaster float
8) once done, wait for 30 min and use a longer straight edge to screed the whole surface.
9) you may float - optional
Good luck
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