• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
MMS- Are some unreliable with high RH?

#10
(11-06-2011, 06:19 PM)Rubensgt40 Wrote:  Some guys put down plastic sheeting, then plywood, then overlay timber flooring. Is this a reliable mitigation against slab moisture?

Yes it can be, I do that all the time for floating floors. But if I am using a solid timber or the slab is below grade I take it a step further and use something like Bostik MVP4 first, then the plastic, then plywood and then 15lb roofing felt and finally the timber.

I have also tested these systems before hand using the Rapid Rh, and even going so far as to do a few F 1869 tests on top of the MVP4, even though the ASTM guru's say you cannot do that. Not sure why because if you take a close look at ASTM E 96 they use a dessicant to evaluate the product they are testing, and that dessicant is.....calcium chloride. Kinda confusing huh? Whats more confusing is that many of these people who frown on the old F 1869 test will always refer to the ASTM E 96.

Stephen Perrera dba
Top Floor Installation Co.
http://www.tucsonazflooring.com
http://www.floorsavior.com
Reply


Messages In This Thread
RE: MMS- Are some unreliable with high RH? - Ernesto - 11-07-2011, 07:24 PM

Possibly Related Threads...
Thread Author Replies Views Last Post
  Who Says Rapid Rh Reads High? Ernesto 3 9,307 08-20-2012, 07:07 PM
Last Post: CC Solutions
  High Rapid RH readings?? ddemento 49 81,086 12-08-2011, 06:03 PM
Last Post: Ernesto
  high rh in concrete chas04344 2 8,909 09-11-2009, 07:33 PM
Last Post: chas04344

Digg   Delicious   Reddit   Facebook   Twitter   StumbleUpon  


Users browsing this thread:
1 Guest(s)