My question: what is the “professional” way to check for voids, proper mortar, proper underlayment, properly attached to the floor, etc. I’ve only put in three such floors in my life, first with a master mason/tile person, and, therefore, am not an “expert.” I believe I know the basics on how it’s supposed to be done. Underlayment is the 1/4 inch concrete type, nailed not screwed. They only removed the hardwood and three weeks later began a three week installation of the tile. This floor is a replacement for a hardwood floor flooded by a clothes washer whose water shutoff/fill level switch failed. I’m asked by Farmer’s Ins Co to make an inspection of a ceramic tile installation from a year ago.
