(09-15-2011, 01:58 PM)rapidrhrep Wrote: The floor fails, first question asked, "did you do moisture testing"? You show your documentation, the next question, "how do I know you didn't just make these readings up and/or how do I know these readings have anything to do with the slab in question"?
If you have this and have utilized the metal disks, you can easily find the six probes, pop out the patch, and retreive the inserts(serials numbers tying back to documentation). You have now been able to close the loop.
Hmmm... That makes more sense than the way I have been doing it...
Tests? What tests? Floor? What floor? Jason? Who's Jason?
This of course is only applicable if I have been paid for the job.
Okay, seriously, back to your scenario...
Did you take the tests? Yes.
What did they read? 12% RH.
How many did you use? 6.
Can you prove it? Weeeeelllllllll.... I can get out my handy dandy Ronco metal disc detector and find six probes. I can open said probes and retrieve the serial numbers. I can even stick the reader back in said probes and .... Oooops, they read 99% now. Well they DID read 12% and the floor was okay....
So as a way to verify that at one point in time they actually did read value X, finding them again is not going to help. If you said the floor was good it must have been good, and the only thing that could have caused the moisture to come up would have been a missing or improper vapor retarder, or your initial probe installation was wrong. Wrong depth, hole oblong, sitting in a big chunk of granite. If you installed the probe incorrectly, you wouldn't want someone digging it back up to critique your work now that there is a failure!!!
And the value of reusing the probe may not be as great as re-drilling new probes in an out-of-the-way location such as under a soda machine or in a closet to determine current RH values.
So in summary, just because you can find the probe and prove you actually have the NIST certificate for the serial numbers in the floor, that doesn't prove you didn't get paid off by the GC to write down low RH values so he could get his floor installed on time. But it does open up critiquing of your installation for further review.... Unless I'm missing something here....
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