You could do it dry with turbo cats and a concrete grinding dry vac. I would find out if they used plastering paper (tar saturated) when they did the lath. Otherwise it could cause a major problem if wet grinding. Is it exterior grade plywood, or chip board? You might need to stay away if there is currently a problem for liability reasons.
From: Freddie DeJesus [mailto:info@eliteflooringandrefinishing.com]
Sent: Tuesday, July 24, 2012 12:22 PM
To: Stone and Tile PROS Technical Support
Subject: [sccpartners] Grind, hone, on limestone?
Hello partners,
I wanted to get your opinions on grinding and honing on a limestone floor that the sub-structure is wire lath on top of plywood. The limestone is chipping because of defection on the floor. The sub-structure was not reinforced properly before the installation of the limestone. This limestone is very porous and I worry that when grinding and honing, the limestone will absorb the water into the plywood, and cause problems such as warping. Anyone ever have any problems with this? I know to keep the water to a minimum, but its limestone, its like honing a sponge.
--
Wilfredo DeJesus
561-350-3076
Elite Flooring Inc.
Website / www.eliteflooringandrefinishing.com
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