#Login Register
Who Says Rapid Rh Reads High?
  • 0 Vote(s) - 0 Average


08-07-2012, 07:29 PM #1
Ernesto Concrete Moisture Expert *****
Status: Offline Posts:606 Threads:33 Joined:Sep 2009
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

08-10-2012, 01:45 PM #2
CCR Concrete Moisture Coach ***
Status: Offline Posts:236 Threads:14 Joined:Dec 2011
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

08-20-2012, 01:46 PM #3
eaadams Concrete Moisture Expert *****
Status: Offline Posts:592 Threads:85 Joined:Jul 2010
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.

08-20-2012, 07:07 PM #4
CC Solutions Concrete Moisture Evangelist *******
Status: Offline Posts:1,065 Threads:69 Joined:Dec 2009
Well that's great!

JD Grafton
Concrete Answers for Flooring Problems
JGrafton@ccsolves.com








Possibly Related Threads...
Thread / Author Replies / Views Last Post
15 Replies 39,762 Views
Last Post by CC Solutions
01-15-2012, 06:33 PM
49 Replies 94,841 Views
Last Post by Ernesto
12-08-2011, 06:03 PM
64 Replies 117,793 Views
Last Post by CC Solutions
11-17-2011, 07:56 AM
4 Replies 10,835 Views
Last Post by CC Solutions
08-19-2011, 07:13 AM
 high rh in concrete
chas04344
2 Replies 10,210 Views
Last Post by chas04344
09-11-2009, 07:33 PM

Users browsing this thread:
1 Guest(s)