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Who Says Rapid Rh Reads High?
08-07-2012, 07:29 PM,
#1
Who Says Rapid Rh Reads High?
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?
Stephen Perrera dba
Top Floor Installation Co.
http://www.tucsonazflooring.com
http://www.floorsavior.com
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08-10-2012, 01:45 PM,
#2
RE: Who Says Rapid Rh Reads High?
I've seen a number of manufacturers of various products who don't state tolerance levels or requirements. Surprising to say the least.
JK Nixon
Concrete Restoration Services, LLC
Pittsburgh, PA
http://www.rhtester.com
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08-20-2012, 01:46 PM,
#3
RE: Who Says Rapid Rh Reads High?
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.
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08-20-2012, 07:07 PM,
#4
RE: Who Says Rapid Rh Reads High?
Well that's great!
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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