On Oct 15, 6:54*pm, Joe wrote:

I didnt realize it but It appears that they only nailed the previous
5/8 into the joists-I didnt pay that close attention when I pulled it
up (it was particle board that had gotten wet, and it was a
nightmare), but I see now they didnt nail it in the field much, if at
all.

Right, copy the failed installation. Seems like a plan.

R