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Unread 07-13-2006, 10:01 AM   #3
CWB
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Join Date: Jul 2006
Posts: 3
I agree that it would be best to avoid the massive demolition of the mud bed. I have only removed a few tiles from the exposed edge in order to determine how easily they come off (not easy, by the way). I did this bymallet and chisel, bit I had planned on going to The Home Depot and renting a electric demo hammer as you suggested. I have done this once before to demo a solid concrete step, so at least I am not afraid of the tool!

Anyway, the few removed tiles are nowhere near the cracks so I do not know how far they propogate. I can tell you that there are two main cracks that run accross the majority of the width of the floor (approx. 4' x 8' space). One of them comes from the corner of the shower surround and propogates primarily along a grout line so it is mostly hidden. The other crack runs from the wall behind the toilet, under the base of the toilet, then accross at an angle to the bath tub. I can also see a little "slope" towards the cracks. I have to assume from all this that the concrete bed has settled like the rest of the house (California earthquake country). I am not surprised that 3" of concrete laid on a raised wood subfloor has cracked given the condition of my garage slab!

So, if I remove the tiles and find that there are a couple of cracks in the bed, do I have to remove the whole thing, or can I just use a (necessary?) leveling layer to "glue" the cracks back together?

If I do have to remove the bed... given that the built-in cabinet was not on the bed, is it likely that it extends under the shower and tub as well? I am NOT planning on demolishing any of that, just the exposed floor, so that could be a problem.
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