How do I say anything without getting in trouble or a huge debate???
Bob and I don't see eye to eye, we all know that. But the list of people I do agree with is long and impressive. Howard Kanare is on that list, although Howard and I have had some disagreements about installation practices, I will defer to his much better pedigree!
Bob and his dang CaCl tests, they have been scientifically proven to be inaccurate. He will refute that fact until the cows come home, but you know what I think the real problem with Bob is? He never has his money on the line. I have to put my money where my mouth is every time I do a job, every moisture test I take and every job I mitigate. My testing will determine my liability for millions of dollars a year. When I think of it, Howard is the same way, except Howard is using CTL money, so maybe not. My money is on the line for my work. Just like you guys. I'm not sure about Bob, but he doesn't sound like it. He's a consultant, and if the job fails he can point to some voodoo he couldn't have expected. Maybe if Bob had to test a slab then GUARANTEE he could get a floor to stick to it for 20 years, he'd change his tune.
CaCl tests DON'T work for flooring purposes. If Bob wants to debate that, I'll build him an 18" thick lightweight slab and I'll dry that thing to 3 lbs MVER and we'll see how long a rubber floor will stick to the thing. RH testing will tell me the slab is wet, but CaCl, impedance, or any other easily fooled test won't. And he speaks at length about basketball stadiums and condensation. The ASTM's governing flooring installation require conditioned airspace for 48 hours before installation can begin, so condensation is basically a non-issue.
And don't get me going on his jar with wood and all these other analogies he comes up with. He is difficult to understand not because he's brighter than anyone else, because he doesn't make sense! Maybe in his own mind the words make sense, but just reading a paragraph hurts my brain trying to decipher what point he is trying to make. Like reading Shakespeare....
My point is; Bob's favorite testing methods have been proven to give false results. While I agree in using multiple tests to get a more wholesome picture, I rely most heavily on RH testing, and many major manufacturers are also making the shift. This is NOT because it is cool and chic, but because it works and it saves money.