Sounds like moisture in the slab. Did you do a moisture test?

Repairing the wood will do nothing on a wet slab.

M Hamlin
"Red" wrote in message
...

"Jim Mc Namara" wrote
No Red - it's over a concrete slab. The slab was "dusty dry" and I
primed
it as per the mfgr's recommendations and allowed it to dry and cure
for 3
days. When I took the tiles home, I opened each box removing them and
allowing them to sit in the same ambient temperature they would be
installed
in during the same 3 day period. I'm baffled as to the cause - but
the cure
(other than removing) is my biggest concern. I'm thinking of either
cutting
a kerf down a seam and injecting adhesive and weighting down the area
or
drilling a series of small holes and injecting. I can plug the holes
(I'm a
woodworker) where they will be unnoticeable but was wondering if
anyone else
had to do this. The customer service line was of no help (Remove and
replace).

Thanks

Jim

The cause would be a guesstimate of moisture.

Now the fix is, since you are a woodworker, you should be familiar with
_loose tongue_ and a router. A bit of a project, kinda hard to explain
over the net. You can remove the damaged pieces (drill 1/4" from
corners, mark area one inch in all way around, saw cut, WATCH the
depth)you won't be able to reuse,errrrrrrr maybe you will. Route new or
old pieces a fraction to give you expansion room. Need a milling tool
for router for existing floor you didn't remove, glue in loose tongue,
cut undersides of new pieces, put into place to check. Paper drywall
tape will be used for shims. Dry fit, remove, glue to the loose tongue,
since this is a glue down application.

This is a real real rough description on how repairs are done.