Is there any way to "un warp" old marble?

[cechanis]

I've recently purchased an old home and found an old marble vanity top in the attic.  Unfortuneately, the slab has warped over the years, is no longer level and slightly arcs in ... is there anything I can do to level  / flatten it again for re-use?  I appreciate the help!

[Mark D.]

The best I can give you is flip the slab over and let them unwarp, but if you don't occasionally check on them they will go past flat to warp the other way. This is one way. The other suggestion is to take 1 slab and put it on your 'A' frame and then lay a straight slab over it. No more than 1 slab because too much weight will cause the stone to crack.

After straightening these out and knowing they are prone to warping, make sure you use a substrate under the entire counter as opposed to merely gluing it to the pieces of the cabinet it would touch as the hollow areas will warp again.

This information was provided to me by 2 different fabrication shops here in town, and I trust them both.

Mark