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+--- Forum: Moisture Measurement in Concrete (/forumdisplay.php?fid=2)
+--- Thread: Who Says Rapid Rh Reads High? (/showthread.php?tid=320)
Who Says Rapid Rh Reads High? - Ernesto - 08-07-2012 07:29 PM
Tested a slab on grade, almost in the wash, probably one of the lowest points in the area as far as water tables run. Got readings of 67 to 70% rh @ 70 to 72 F. Getting tons of rain down here and water puddles in the yard. Home is 15 years old at least so doubt there is a vapor barrier underneath. I was certain I would get at least a 95% rh. Goes to show you never know. I be gluing some engineered hardwood down with Sika T-21.
Didja know Sika has no numbers for either 1869 or 2170?
RE: Who Says Rapid Rh Reads High? - CCR - 08-10-2012 01:45 PM
I've seen a number of manufacturers of various products who don't state tolerance levels or requirements. Surprising to say the least.
RE: Who Says Rapid Rh Reads High? - eaadams - 08-20-2012 01:46 PM
I had some test results just come back on a project.
Slab is 2.5 years old and I was convinced it would come in wet.
Every test came in from the 70s - 80s. Thoroughly surprised.
RE: Who Says Rapid Rh Reads High? - CC Solutions - 08-20-2012 07:07 PM
Well that's great!